Could you put sand in this and use it as a fluidized bed filter?

I do. I put filter floss under the sponges to prevent sand from falling to the bottom. Used pool filtration sand and branched off from my primary pump with a valve to adjust water flow. I don't use the included pump but I don't see why you cant. Works great for me!

Is the pump that it comes with a submersible or not

I'm confused how any pump that's not submerged would even work? That's kind of the point of the pump, to be submerged in water so that it pumps into the media...

What are the exact internal diameter of the hoses?

From what I can measure, its 7/16 in. inner diameter and 1/2 in. outer diameter

What size tubing I can use for the aquatop Mr 20 to replace the clear tubing that came with it with a black tube ?

7/16 inch inner diameter, 1/2 inch outer diameter

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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Media Reactor with Pump

Product ID: 281273940

Details

Brand
Aquatop
Colour
Black and
Material
Acrylic
Product dimensions
16.5L x 14W x
Style
Submersible

💧152 GPH adjustable flow pump

🔄Reverse water flow design

🛡️Up-flow filtration maximizes media efficiency

€ 291.08

Duties & taxes included

In stock

Sold byAmazon AustriaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💧 Elevate your aquarium’s clarity with precision flow and unbeatable media efficiency!

PRECISION FLOW CONTROL - Adjust the SWP-360 pump flow up to 152 GPH for tailored filtration performance.
COMPLETE INSTALLATION KIT - Includes intake/output tubing and all plumbing parts for hassle-free setup in-sump or hang-on-tank.
MAXIMIZED MEDIA EFFICIENCY - Innovative reverse water flow prevents channeling, ensuring every grain of media works harder.
VERSATILE FILTRATION CAPACITY - Optimized for tanks between 50-200 gallons, perfect for professional-grade aquatic environments.
DURABLE USER FRIENDLY DESIGN - High-quality acrylic reactor with an easy-to-remove lid featuring a recessed O-ring for secure sealing.

The AQUATOP MR-30 Media Reactor with Pump combines a powerful 152 GPH adjustable SWP-360 pump and a reverse water flow design to maximize filter media efficiency. Crafted from durable acrylic with a user-friendly lid and complete plumbing kit, it supports filtration for tanks from 50 to 200 gallons, making it an essential upgrade for serious aquarium enthusiasts seeking crystal-clear water.

Specifications

ASIN	B00GYG54ZU
Best Sellers Rank	#135,104 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #299 in Under-Sink Water Filters
Brand Name	Aquatop
Color	Black and Clear
Customer Reviews	3.7 3.7 out of 5 stars (109)
Flow Rate	152 Gallons Per Minute
Global Trade Identification Number	00819603014044
Included Components	AQUATOP Media Reactor with Pump
Item Dimensions L x W x H	16.5L x 14W x 59.7H centimeters
Item Type Name	Atp Multimedia Reactor 152Gph
Item Weight	3.45 Pounds
Manufacturer	Aquatop
Manufacturer Part Number	028081
Material Type	Acrylic
Model Number	MR-30
Number of Items	1
Number of Packs	1
Power Source	Corded Electric
Product Style	Submersible
Specific Uses For Product	Indoor
UPC	819603014044
Unit Count	1 Count
Voltage	120 Volts

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