Hello, hope someone can help, I have a 55 gallon tank and keep some tropical fish and 4 plecostomas, yesterday i put in some live plants did a partial
water change, cleaned some of the gravel and put in a new filter machine, my tetras and paily(not sure how to spell) are now constantly swimming towards the top of the aquariam, the algae eaters seem to be doing fine though they keep popping up to the top of the aquarium to get air bubbles or something, i did put in some tetra aquasafe after I added the new water and tablets for the plants. Can someone please tell me if it is normal for the fish to constantly stay towards the top of the water in the aquariam. Thanks in advance.