API ACCU-CLEAR Freshwater Aquarium Water Clarifier 37 ml Bottle

It works very well. I have used it twice on my tank as directed on the bottle. Both times gave a similar result. Takes about 12 hours to work. I did have a baby frog in my tank which died 2 days after I used this. I'm not sure if it was due to adding this as the frog was new to the tank and everything else has been totally fine, so maybe don't use it if you have a frog just in case.

I use this when re-scaping planted tank - it really helps to clear up the murky water caused by disturbing substrate.

After syphoning up the "gunk" off the bottom of the tank and scrubbing the algae off the glass the remaining water can be a bit like soup and probably not pleasant for the fishy residents. I don't like to think the suspended junk will just settle again so tried this (as directed on the label). Turns the water an amber colour but within an hour or so the water was crystal clear and after a further hour the coloration had faded. Depending on how long the mechanical filter has been in your filter kit you may need to remove and change it (or rinse it) as I found the flow rate of my Fluval G6 dropped - on removing the mechanical filter there was more gunk in it than I've seen before so the Accu-Clear certainly did what it says on the tin!!

amazing stuff,makes a cloudy tank water crystal clear in a matter of hours

This stuff is amazing and its not overly expensive either. I set up a new tank with plant substrate, sand and gravel and as a result, the water was extremely murky and cloudy with sediment. I used filter floss and Accu-clear ad within 3 hours my tank water was crystal clear. As I haven't got any fish in my tank yet I can't comment on how it affects them but hopefully it'll be ok and I'll be able to comment on that later.

New tank was very very cloudy 2 months later even though water tests were showing the water was all in parameters - mine personally took about a week to show any difference, I just trusted the process. Superb and made up with the results - just make sure you follow instructions and be patient x

Does what it says

ok. on reading the instructions, i found that, you put 1ml in 10gallon ,so unless you have a 10 gallon fish tank in your home its no good!