I’ve had this Adonis pleco for about 3 years in a 55 gallon tank and he’s had this growth for about 2.5 years. I can’t teat the water but I can assure you its perfectly fine because there’s been about 20 fish living in there over the span of 3 years. I just want to know what this is and how or if I can treat it. The other tank mates are 2 dwarf gourami, 2 common pleco. 1 rhino pleco, 5/8 otocinclus, 1 bristlenose fry, and 1 clown pleco. I change water and filters, water once every other week, filters once every month. They eat top fin algae wafers. ( everything in the tank eats those) the temp of the tank is 82 F. I’ve tried just using salt salt on it for about a week and that did nothing. Thanks
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