Well just noticed that my 4x monos are starting to get some ick on their fins their in my 405 with 2x IT Dats, 4x Cigar Barbs, 1x Niger Cat, 1, Clown Knife every one else seems to be doing fine they all look clear but iv also noticed a couple of the barbs rubbing against the gravel and stuff so I imagine they have some to, I just went and picked up AP Pro Quick Cure just wondering if anybody has used this stuff before and if its any good, Thanks.