Hi I’ve recently noticed one of my 8 harlequins has been hiding under the shade from the filter. She comes out to eat and swims around when the lights off. It is a heavily planted 29g tank and i also have 4 emerald corydoras (going to get 2 more my lfs only had 4 when i got them) and a juvenile bn pleco. It seems like her belly is a little big and I was wondering if anyone else has experienced something like this or knows what is wrong. I also tested the water and it has 0ppm nitrites and ammonia. I was going to mount the light higher up and see if it was the intensity of the light that she didn’t like but i figured maybe if someone else has experienced something like this I could get some feedback from this forum. Thanks in advance!