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11 reviews | 4.6 out of 5
Great cartridges my water is crystal clear and you save money by buying these in the multi refill packs. Easy to use and install into the tank too!
I have used this product for years and it does a great job. Easy to use and assemble. It is much more cost efficient to buy large count boxes and assemble the cartridges myself than to buy small count boxes of pre-assembled ones.
These filters work just fine. I have a 55 gallon tank full of guppies. You can use them with or without the charcoal. If you need to treat your tank for diseases or something you need to not use the charcoal. I used to not change these filters for 6+ months and they still worked. But now I'm better about it and change them monthly.
I like to cut the bags of charcoal with scissors because occasionally the bag won't rip right and then it will rip too much and the charcoal spills everywhere. LOL. Maybe that's just operator error.
I ordered these to because the price was excellent and to avoid a trip to the store. They are a good quality at a good price.
I was using this for almost 2 years. It's a very good products. Wow!
The tetra filters are the best. These filters keep my tanks crystal clear.
love biofilters and the fish food from tetra, The bio filters are easy to use and the filters work great
Very fast delivery. Filters are as described in ad and received in good condition.
These products work ok for the smaller filters but when used in a real filter like the Tetratec 500 they literally deteriorate and fall apart around 1 month. Extremely expensive when using 4 of them and you have to replace them in like 2 weeks or they break down in your tank. Added 4 new ones and went to replace the carbon a month later and they fell apart as I pulled them from my Tetratec filter releasing all of the waste they captured back into the tank. I would not recommend these products ever.