Bought these for my freshwater aquarium after having problems with water clarity and wow! The water is crystal clear, small and compact, I just popped it in with my other filter media and within a couple of hours the water was clear. I by them regularly now and change it about once a month, what can I say, it absolutely does what it says on tin
Verified purchase: Yes | Condition: New
My water stays clean and clear for ages, although I regularly do part water changes,every week... I clean the sponge every time I water change, in the water I've taken from tank.. Never clean this Media in fresh water, only the tank water that's come out as you'll wash away the bacteria its designed to put into the tank Excellent filter
Verified purchase: Yes | Condition: New
a little pricey but it will last in my opinion about 3 months before changing it they provide an excellent biomax cleaner and certainly Polish the water to crystal clear a must for those of us that like to maintain clarity in aquarium water
Verified purchase: Yes | Condition: New
Use these in a u2 in my frag tank, I change weekly but sure they can last longer, keeps water Cristal clear , great addition to a great filter , first class
Verified purchase: Yes | Condition: New
It does exactly what it says on the box. My aquarium water is clean & chrystal clear.
Verified purchase: Yes | Condition: New
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