I have an Apistogramma Borellii that I got at the last swap meet last month. He is in my 20 gallon tank and has been hiding since he was put in. There’s driftwood, plants, and rocks so he has plenty of comfort zones. There are also 10 white clouds and two lemon blue eye plecos in there with him. Water parameters are good and temp stay about 76.8 or so. Am I doing something wrong, or does he need a fellow tank mate? Or is this normal?