--- product_id: 5091794 title: "EHEIM TWIN Automatic Feeder, Battery Operation, Random" brand: "eheim" price: "€ 141.39" currency: EUR in_stock: true reviews_count: 8 category: "Eheim" url: https://www.desertcart.at/products/5091794-eheim-twin-automatic-feeder-battery-operation-random store_origin: AT region: Austria --- # Randomized feeding schedule Battery powered with included cells Dual programmable chambers EHEIM TWIN Automatic Feeder, Battery Operation, Random **Brand:** eheim **Price:** € 141.39 **Availability:** βœ… In Stock ## Summary > 🐠 Feed your fish like a proβ€”effortless, precise, and always on time! ## Quick Answers - **What is this?** EHEIM TWIN Automatic Feeder, Battery Operation, Random by eheim - **How much does it cost?** € 141.39 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/5091794-eheim-twin-automatic-feeder-battery-operation-random) ## Best For - eheim enthusiasts ## Why This Product - Trusted eheim brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Natural Feeding Rhythm:** Randomized feeding times mimic wild conditions to keep your aquatic friends thriving. - β€’ **Large, Intuitive Display:** Clear interface ensures you stay in control without fumbling through menus. - β€’ **Reliable Battery Operation:** Comes with included AAA batteries for uninterrupted, cordless convenience. - β€’ **Versatile Food Compatibility:** Supports two food types simultaneously, perfect for diverse aquarium ecosystems. - β€’ **Precision Dual-Chamber Feeding:** Individually program granulate, sticks, pellets, or flakes for tailored nutrition. ## Overview The EHEIM TWIN Automatic Feeder is a battery-powered, dual-chamber fish feeder designed for professional-grade aquarium care. It features programmable individual chambers for different food types, a random feeding function to simulate natural conditions, and a large display for easy scheduling. Built with German engineering, it ensures reliable, precise feeding for all stages of fish, making it a must-have for dedicated aquarium enthusiasts. ## Description The EHEIM Twin Automatic Fish Feeder has dual chambers for different types of food and can be programmed individually. Review: Four Times Eheim User - Over the years I have purchased four Eheim twin automatic feeders. As you would expect from German engineering, the unit is built with integrity and reliability. The instruction booklet is 61 pages (see picture) and illustrated with black and white photos and in several languages. Pretend you're back in college and taking notes from that professor who entered school at five years of age and never left. This is not an easy-to-use feeder despite the considerable effort by Eheim to break down the information in a logical fashion (I felt like I was reading a manual to operate my Mercedez Benz!). The unit provides multiple capabilities for various food types, times, cycles, including "random" feeding times. Closely follow the instructions step-by-step and try to memorize the system behind the programming. Assembling the unit requires multiple steps and a sensitivity to how parts fit together. Do not rush this process. I found the list of multiple languages somewhat tedious as you need to progress to the next step by keeping your place in the programming outline. Once programmed, you can expect flawless operation if this sensitive unit is safely secured to whatever platform you have. The tiny velcro tabs for the tiny rubber feet are more a gentle joke than a security system. CAUTION: If you change food types, or alter the number of fish, or modify your tank environment in any way that would necessarily require modification in how you feed your fish, you will need to test again if the proper number of feeding cycles is adequate. This will require adjustments to the feeding unit. For me, I have to consult the instruction pamphlet once again to ensure I understand the multiple step process. This requires flipping through the 61-page pamphlet all over again. ALSO: If this unit comes into contact with any moisture (definite possibility given this unit is for aquariums), WATCH OUT! Twice my housekeeper -that's right, TWICE - knocked the pricey unit into the tank. Once the Eheim unit went to the bottom of my 55-gallon tank like a rock. The tank was thick with food flakes! Another time the unit barely touched the surface before my housekeeper, amid screams of "Not again!" scooped the expensive unit from the tank. In both times the unit was completely ruined and malfunctioned like a bizarre creature from a Sci-Fi film, spitting out clumps of food in a continuous grind, opening and shutting its lid, and finally clunking to an irreversible death. I had to purchase a new one. Yesterday my fourth Eheim unit was sprinkled with a few drops of water as I moved an algae scrapper across the tank. The unit started whirring and whining and continuously pushed fish food from both cylinders at an alarming rate showering food into my tank like rain. EHEIM SUPPORT: I emailed support and wondered if there is any way they could prepare this fine unit to exist around water with more confidence that it would not react like a touchy robot (remember, the Witch in the Wizard of Oz melted with one drop of water!). Eheim Support was cordial and professional and sent me a replacement, although that is not what I requested. Thank you, Eheim! Yes, I will buy this unit again. Several times I've traveled out of the country for several weeks at a time. This Eheim feeder worked like it's supposed to work. The fish were fat and happy. Review: Working Great So Far For Koi - I've used the Eheim Twin for a month so far on a wood plank over a small outdoor Koi pond. It has worked flawlessly so far. The fish seem to like its consistent feeding time. I'm only use one food type (Kaytee Koi's Choice pellets), so using both bins for extra capacity. What I like: -- Twin screw feeders (instead of rotate and dump). The screw feeders seem pretty consistent in how much food they dispense. I haven't had any problems so far with over feeding, under feeding, sticky food, etc. -- Can program it to dispense a wide range of food (for each feeder, 1-3 daily feedings with 1-9 screw turns each time) -- Easy to fill. -- Made in Germany at a reasonable price. Other notes: -- I know it's NOT rated for outdoors. When the winter comes, I'll either bring it indoors or build a better case for it (right now, just have a plastic box on top in case of unexpected rain). -- The included mounting squares are cheezy; I ignored them and used some 2" Velcro. -- For my pond size, the food lasts well over a week. -- For basic settings, user interface isn't bad. Yes, you do have to go through all the settings, but I don't have to dig out the manual, I don't change it often, and it doesn't take more than a minute when I do. Now, if I wanted to set something fancy like random feeding time, I might need to dig out the manual (I think I remember how to do it, but would need to verify). ## Features - Two separate food chambers for granulate, sticks, pellets, or flakes - can be programmed individually - Aerated chambers to ensure your food stays dry - Random function for natural feeding conditions - Two types of food can be fed at the same time, ensuring the correct supply to all aquarium inhabitants.Large display and batteries included ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000O3BCUA | | ASIN | B000O3BCUA | | Additional Features | Feeding Schedule, Programmable | | Age Range Description | all stages | | Are Batteries Required | No | | Batteries | 2 AAA batteries required. (included) | | Batteries are Included | Yes | | Best Sellers Rank | #63,892 in Pet Supplies ( See Top 100 in Pet Supplies ) #98 in Automatic Fish Feeders | | Brand Name | Eheim | | Breed Recommendation | Large Breeds | | Capacity | 80 Milliliters | | Color | Random | | Customer Reviews | 4.0 4.0 out of 5 stars (494) | | Date First Available | March 7, 2007 | | Department | Adults | | Dog Breed Size | Large | | Global Trade Identification Number | 00720686350175 | | Included Components | all | | Is Discontinued By Manufacturer | No | | Item Dimensions L x W x H | 6.34"L x 2.91"W x 4.65"H | | Item Type Name | Twin | | Item Weight | 0.7 Pounds | | Item model number | 3582000 | | Manufacturer | Eheim | | Manufacturer | Eheim | | Manufacturer Part Number | 3582000 | | Material Type | Plastic | | Model Number | 3582000 | | Operation Mode | Automatic | | Power Source | Battery Powered | | Product Care Instructions | Hand Wash Only | | Product Dimensions | 6.34 x 2.91 x 4.65 inches; 11.2 ounces | | Recommended Uses For Product | Indoor | | Style | Automatic | | Target Species | Fish | | UPC | 720686350175 | | Unit Count | 1 Count | ## Product Details - **Brand:** Eheim - **Material:** Plastic - **Recommended Uses For Product:** Indoor - **Special Feature:** Feeding Schedule, Programmable - **Target Species:** Fish ## Images ![EHEIM TWIN Automatic Feeder, Battery Operation, Random - Image 1](https://m.media-amazon.com/images/I/713WLGUKPUL.jpg) ## Questions & Answers **Q: This model doesnt work for a small aquarium with 6 liters? Would be very big and launch big amount of food? Thanks** A: I think it would launch too much food for that sized tank. **Q: how many cups of food fit on each chamber?** A: Maybe 1/8-1/4 cup in each chamber once it works though the coil that feeds it through but that's probably pushing the high end. **Q: Is this a one day feeder How many days can it feed** A: old job i had 3 of them in a 400 gal salt water tank i had to refill them one a week feed 3 time a day **Q: How much food is served (how many pieces) in 1 rotation using shrimp pellets?** A: About 1000 pieces of normal sized pellets is the smallest amount. I have a 240 gallon aquarium and this thing feeds enough for a week on the lowest setting. Run don't walk away. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Four Times Eheim User *by R***. on July 14, 2020* Over the years I have purchased four Eheim twin automatic feeders. As you would expect from German engineering, the unit is built with integrity and reliability. The instruction booklet is 61 pages (see picture) and illustrated with black and white photos and in several languages. Pretend you're back in college and taking notes from that professor who entered school at five years of age and never left. This is not an easy-to-use feeder despite the considerable effort by Eheim to break down the information in a logical fashion (I felt like I was reading a manual to operate my Mercedez Benz!). The unit provides multiple capabilities for various food types, times, cycles, including "random" feeding times. Closely follow the instructions step-by-step and try to memorize the system behind the programming. Assembling the unit requires multiple steps and a sensitivity to how parts fit together. Do not rush this process. I found the list of multiple languages somewhat tedious as you need to progress to the next step by keeping your place in the programming outline. Once programmed, you can expect flawless operation if this sensitive unit is safely secured to whatever platform you have. The tiny velcro tabs for the tiny rubber feet are more a gentle joke than a security system. CAUTION: If you change food types, or alter the number of fish, or modify your tank environment in any way that would necessarily require modification in how you feed your fish, you will need to test again if the proper number of feeding cycles is adequate. This will require adjustments to the feeding unit. For me, I have to consult the instruction pamphlet once again to ensure I understand the multiple step process. This requires flipping through the 61-page pamphlet all over again. ALSO: If this unit comes into contact with any moisture (definite possibility given this unit is for aquariums), WATCH OUT! Twice my housekeeper -that's right, TWICE - knocked the pricey unit into the tank. Once the Eheim unit went to the bottom of my 55-gallon tank like a rock. The tank was thick with food flakes! Another time the unit barely touched the surface before my housekeeper, amid screams of "Not again!" scooped the expensive unit from the tank. In both times the unit was completely ruined and malfunctioned like a bizarre creature from a Sci-Fi film, spitting out clumps of food in a continuous grind, opening and shutting its lid, and finally clunking to an irreversible death. I had to purchase a new one. Yesterday my fourth Eheim unit was sprinkled with a few drops of water as I moved an algae scrapper across the tank. The unit started whirring and whining and continuously pushed fish food from both cylinders at an alarming rate showering food into my tank like rain. EHEIM SUPPORT: I emailed support and wondered if there is any way they could prepare this fine unit to exist around water with more confidence that it would not react like a touchy robot (remember, the Witch in the Wizard of Oz melted with one drop of water!). Eheim Support was cordial and professional and sent me a replacement, although that is not what I requested. Thank you, Eheim! Yes, I will buy this unit again. Several times I've traveled out of the country for several weeks at a time. This Eheim feeder worked like it's supposed to work. The fish were fat and happy. ### ⭐⭐⭐⭐⭐ Working Great So Far For Koi *by T***Y on July 21, 2022* I've used the Eheim Twin for a month so far on a wood plank over a small outdoor Koi pond. It has worked flawlessly so far. The fish seem to like its consistent feeding time. I'm only use one food type (Kaytee Koi's Choice pellets), so using both bins for extra capacity. What I like: -- Twin screw feeders (instead of rotate and dump). The screw feeders seem pretty consistent in how much food they dispense. I haven't had any problems so far with over feeding, under feeding, sticky food, etc. -- Can program it to dispense a wide range of food (for each feeder, 1-3 daily feedings with 1-9 screw turns each time) -- Easy to fill. -- Made in Germany at a reasonable price. Other notes: -- I know it's NOT rated for outdoors. When the winter comes, I'll either bring it indoors or build a better case for it (right now, just have a plastic box on top in case of unexpected rain). -- The included mounting squares are cheezy; I ignored them and used some 2" Velcro. -- For my pond size, the food lasts well over a week. -- For basic settings, user interface isn't bad. Yes, you do have to go through all the settings, but I don't have to dig out the manual, I don't change it often, and it doesn't take more than a minute when I do. Now, if I wanted to set something fancy like random feeding time, I might need to dig out the manual (I think I remember how to do it, but would need to verify). ### ⭐⭐⭐⭐ Modified for Extended Days. *by A***R on December 12, 2019* Over the years I have tried numerous feeders but remained mostly dissatisfied due to irregular portion size as the rotating drum gets low on food. Although this Eheim Twin-feeder does not like big flakes and clogs relatively easy, I discovered Tetra Crisps work perfectly because they are smaller and more consistent in size. Unfortunately, We like to winter in Florida and this feeder only holds enough food for 4 or 5 days (at best) with 3 feedings a day for my large hungry fish. I designed a supplemental tank that sits on top of the feeder and adds about 2 months of additional food to the normally limited food supply. It works great! After 4 weeks of testing, I decided I can easily change this 13 oz tank to a larger supplemental tank for even longer vacation times. For those interested ...I took an empty plastic 13 0z bottle of ketchup (water bottles would probably work fine too) and a small 1.5" x 4" thin piece of balsa that was laying around the house. Obviously, any thin, firm material like plastic, metal or wood should work fine. I wrapped the balsa wood with duct tape to keep any moisture from deteriorating the wood. I then cut out two small notches on one side of the wood to accommodate for the Eheim door-hinges which will then allow this new door-top to fit snug when laid over one side of the Eheim Feeder when a feeder-lid is open. Then, I hot-glued the ketchup cap (thread side up) to the new balsa lid. I did trim away a bit on the side of the cap (before gluing) so when I cut a hole through the cap it was centered over one of the feed tanks. I then drilled a hole about the size of a dime through the center of the cap and the balsa lid. That hole proved to be too small and the Tetra-Crisps still bound up. I enlarged the hole with my Dremmel sander to about the size of a nickel and it works fine. I also put a small 1/16th" hole in the bottom of the ketchup bottle to ensure a vacuum would not prevent the food from dropping. Fortunately, the new vent hole prevents a vacuum and is small enough not to let food fall through when I unscrew the bottle for refilling. I added a couple of rubber bands to hold the whole thing in place above the feeder. It works so well, I think it will even work with flakes although I did not test for that. I intend to switch to a larger bottle- tank to ensure our fish are fed over a 3-month vacation. Even better ...the cap is the same size so I don't have to build a new top. An additional plus is that I did not have to alter or damage the Eheim TwinFeeder in any way and I still have the use of both tanks. The negative side is you must have enough room on top of your fish-tank to accommodate the height of the feeder plus the height of the supplemental ketchup-tank. Hopefully, the attached picture illustrates the end product. Good luck with your "Home-made, Extended Vacation, Fish Feeder Mod"! ## Frequently Bought Together - EHEIM TWIN Automatic Feeder, Battery Operation, Random - Eheim Feeding Station, 4.00 x 2.00 x 5.00 inches, Model: 4001020 Black - Eheim Feed-Air Fish Feeder Everyday Unit --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.at/products/5091794-eheim-twin-automatic-feeder-battery-operation-random](https://www.desertcart.at/products/5091794-eheim-twin-automatic-feeder-battery-operation-random) --- *Product available on Desertcart Austria* *Store origin: AT* *Last updated: 2026-04-22*