My goldfish which used to be very active is now just floating around alot. He still swims around enough and is still eating so I dont think he's sick. I was wondering if they usually tend to slow down as they age and get bigger?
that tank is way too small.
How long has he been in there?
what are your ammonia, nitrite, nitrate and ph readings?
how often do you do water changes? and how much water to you take out?
you should be doing at least daily 25% changes.
