Hello! I am new to taking care of fish, and I bought a Black Moor at PetCo. He is in a 1.77 gallon tank, and he is about 2 inches wide. He was swimming perfectly fine at the PetCo tank, with 4 more goldfish in his tank. The tank at PetCo is about the size of mine. The problem is, my Black Moor keeps sinking to the bottom of the tank, and doesn't move for a few minutes. After a few minutes he will swim for a few seconds and then stop. Is there a problem with him or is it a bigger tank I need? Please help, I'm willing to take any suggestions!
Thank you so much!
Thank you so much!