2 X Pure Aquarium

Love these, makes new tank set up so much quicker, and weekly maintenance so much easier

Alue for money quality good

… I'm still not 100% sure they work as effectively as liquid in ensuring my tropical fishtank has an efficient and effective bio load.I guess only time will tell, but at the moment most things still seem to be alive in the tank so I guess they are doing what they're supposed to do.I don't mean to be too negative, they do seem to be working, they are most amusing to put in as you drop them in and they almost instantly disappear. Magic…So, let's say they work, and I think they do. The water is nice and clear, the fish seem relatively healthy, I've got no reason to doubt it, maybe it's because they just disappear when you drop them in that I doubt it? Could be a psychological issue…The anything I really don't like is I'm left with little white balls at the bottom of the tank, half the size of peas, so when you put them in initially they completely disappear but then they seem to distil down to this small Pearl-like ball thing. It's annoying and I don't like fishing the damn things out, is this supposed to be what happens to them at the end? I thought they were supposed to completely disappear and stay disappeared…

A big like

I've been using these for years. They help to maintain good healthy water quality. Add a couple to the water filter when clean.