His diet consists of algae waters every day, Frozen blood worms Once a week, and zucchini, cucumbers, carrots, and broccoli mixed in throughout the week. I believe he’s a common Pleco. When I rescued him the owner didn’t know what he was exactly.
water parameters, are 0 ammonia, 0 nitrite, and it looks like a little less than .5 PPM for the nitrates @Colu.
His normal color pattern was all black originally. He’s been hiding a lot more than usual and His fins are all clamped, but every now and than he would keep them up and I haven’t seen that in a few days. They just look loose and more limp than usual. He has the white patterns on his belly too. He still eats but not nearly as much as he was before, there’s left over food in his tank. I also doubt this could play a role in his recent behavior but I added chemical hang on back filter with his sponge filter to help with the bio lode. Not sure if that could be a factor in some weird way.