Purigen, 100 ml

works like magic i have used it for like 2 years now in 2026, i have a bio load of 6 fish in a 60 litre setup with canister filter, ran one pack of 100ml for 9 months straight and tille the last day the water was like crystal clear like as it was on day 1, definately go for it if want crystal clear water in your tank, and one thing, in these 2 years no dead fish in my tank just one death and that was due to jumping out of the tank at night 🤣

A1 Quality product. From the 2nd day it started working and my water is so sparkling clean. No need of any water clear chemicals that harm your fishes. Really awesome product.

unknowingly I directly added the driftfood into my aquarium and left it float for few days the water completely became brown. I tried to get rid of that by changing the water. I cleaned the complete aquarium and even soil. tried water changing weekly twice but it didn't help either. After that I checked in google and got this product in suggestions, i didn't think it will clear but thought to give a shot, you guys won't believe within hours water completely become very clean. Surprised with the results added the pics as well.

Used it on a new tank with old drift wood bought from some local footpath pet shop (I know, cost cutting on my part). The resultant was a brownish cloudy water in the tank, water changes were not helping. Applied purigen (inside HOB filter), brownish tannin was gone in 24 hours (told you, ads are exaggerated). Now the water stayed milky white, this was due to bacteria imbalance (and probably infamous leach from ADA amazonia). Purigen DOESNT work fixing bacteria imbalance. This milky white water got corrected itself with regular water changes and a bit of help from couple of guppies who accelerated the cycling process. So summary? Purigen works, but it takes at least 24 hours (at least IME), it got rid of the tannin from my driftwood. (4* is more due to the ads which set my expectations so high that I was looking at the sachet as if I was looking at Superman, and then it didn't live up to it's 6 hours crystal clear water claim as they show in the ads).

Don't think twice. If you are tired of your cloudy tank water just buy it within 2-3 hours it will clear your tank water in a crystal clear form. Just buy it.

This is the best thing you will ever invest for your aquarium hobby. It does magic and clears water and removes any tint in water. Also when it is exhausted you can simply recharge it. I have recharged it 4 times now. I used Ala by Rin as a bleach and dip it in small glass bottle for 24 hours. Keep shaking or mix the purigen in bleach 2-3 times in 24 hours. After that wash it properly and again dip it in pure water and add chlorine/chemical remover in that water and leave it for 24 hours and then only use it so it doesn't harm fishes or mix any bleach contains in water.

I bought a 100ml for my 70L tank and it works perfectly with my hang on filter. Water is always crystal clear and even if it gets cloudy sometimes due to overfeeding(which I sometimes am guilty of), it clears up within an hour. Just remember to rinse the product before placing in the filter. I did not read the instructions properly and put it in directly - the water got very cloudy, but it did clear up in a couple of hours. EXPENSIVE, but WORTH THE PRICE.

This is an excellent product, it’s expensive but it cleans aquarium like a miracle. I used it for my flowerhorn fish tank (Size: 4X2X2ft)& it made the water crystal clear in 48hrs.

after putting the purigen, can noticeably see the clarity of the water. very satisfied with the addition of this chemical filter.

This really works! My tank is fairly newly set up, with grape wood driftwood. After 3 months, it was still leeching tannins. I added a 100ml bag into my canister filter (Fluval 307) for my 4 foot tank (150L), and after 24 hours, the tannins are gone! See before and after photos!

I’ve been using Seachem Purigen Adsorbent Fresh & Marine Aquarium Filter Media for a few months now, and I can confidently say it’s one of the best investments I’ve made for my aquarium.

¡Seachem Purigen ha elevado la calidad de mi acuario a un nivel completamente nuevo! Este producto es, sin lugar a dudas, un cambio de juego en la purificación del agua, y estoy encantado con los resultados que he obtenido. Lo que realmente destaco de Purigen es su capacidad para eliminar impurezas de manera excepcional. Desde la primera aplicación, noté una claridad cristalina en el agua de mi acuario. Las partículas suspendidas y las tintes indeseados desaparecieron, dejando un ambiente acuático impecable y saludable. La versatilidad de Purigen es admirable. No solo elimina residuos orgánicos y compuestos nitrogenados, sino que también regenera, prolongando su vida útil. Esto no solo es rentable, sino que también demuestra el compromiso de Seachem con la eficiencia y la sostenibilidad. El diseño de la bolsa de malla de Purigen facilita su colocación en el filtro, y su tamaño compacto permite una integración sin problemas en cualquier configuración de filtro. Además, la capacidad de regeneración significa que una sola bolsa de Purigen puede durar mucho tiempo, haciendo que este producto sea aún más económico. La diferencia en la claridad del agua y la salud general de mis peces desde que comencé a usar Seachem Purigen es asombrosa. Es un componente esencial en mi rutina de mantenimiento de acuarios y no puedo recomendarlo lo suficiente. ¡Si buscas una solución efectiva y duradera para mantener tu agua de acuario impecable, Seachem Purigen es la elección perfecta!

Seachem Purigen – my “HD water” upgrade for crystal‑clear tanks Purigen is the product I reach for when I want that next level of polish. It consistently strips out the dissolved organics that make water look tired—tannins, slight yellowing, and odours—without flattening the life out of a planted or community tank. The end result is that crisp, glassy clarity that makes colours pop and hardscape look like it’s floating. What I notice in real use Immediate visual lift: Within days the water shifts from “clean” to sparkling, with noticeably better light penetration and contrast. Less film and odour: Surface sheen and any faint musty smell are dialled right down. Stable chemistry: It targets dissolved organics rather than stripping essential minerals; I’ve not seen it upset parameters when used as directed. Where it fits in the filter Pop Purigen in a fine media bag and place it towards the end of the flow path, after mechanical (sponges/floss) and bio (e.g., ceramic/Matrix) stages. Clean water hitting Purigen = better contact time and longer life. Don’t pack it too tightly—let water flow through rather than around it. Maintenance & regeneration (simple and cost‑effective) It changes colour from off‑white to dark brown/black as it’s exhausted. That’s your cue to recharge. Follow the label: bleach‑soak to regenerate, then thoroughly neutralise with a dechlorinator and rinse before returning it to the tank. (Pause UV/ozone during this step and never mix bleach with any other chemicals.) Because it’s reusable for multiple cycles, it’s great value, especially if you run several aquariums. Tips from day‑to‑day use Pair it with solid mechanical pre‑filtration; the less gunk hitting Purigen, the longer it lasts. If you want a mild tannin tint (e.g., for a blackwater look), use a smaller pouch or remove Purigen after the water looks how you like it. It works across canisters, HOBs, internals, and sumps—just keep it in a tight, fine bag so granules don’t escape. Verdict If biological media is the engine of your filtration, Purigen is the finishing filter that gives you that “show tank” shine. It’s my go‑to for high‑definition water, fast cosmetic improvements, and long‑term polish without constant replacements. For me, it’s a simple, reliable upgrade that makes every aquarium look its best.