Fluval Phosphate Remover Foam Insert Block

These can be cut to fit any filter . What a difference in water quality and fish health . Our tap water is not good when you test with a test kit although better than a few years ago .i have kept fish for over 50 years and this is one of the best things to aid fish keepers since carbon !!

Within hours of putting this in my aquarium, having carefully followed all the instructions, my fish were gasping for air at the top of the tank. Took it out and within an hour the fish were fine again. DANGEROUS!!

It’s quite hard to place into the filter considering other media needs to be in there. Doesn’t seem to do much!

Great best product I've ever used highly recommended.

Does what it is intended to do.

Good

Use these products great