Originally Posted by Goldiefins
Hello, Iíve had my fancy goldfish for 2.5 years now. Heís always spent time just laying on the bottom of the tank. Recently Iíve noticed heís spending more time on the bottom during the day. I donít know if heís just sleeping since he tends to be more active at night or if thereís something wrong with him. (Ps: due to my work schedule I am only able to feed at night which is probably why heís more active then).
I have a lot of Goldfish and as they mature, they take on individual habits. Goldfish are less active at dusk, like some of us are. The lights going out signals a time for rest. If the fish is otherwise active, I wouldn't fret over this behavior. Night feeding really isn't the best. Food can be missed and uneaten food can certainly foul up the water chemistry. Remember, Goldfish are heavy oxygen users and waste producers. You need to be changing out most of their tank water weekly to remove dissolved waste material and to maintain a higher O2