This just simply means that the fish are bottom dwellers.
Swai fish are considered bottom feeders as they primarily feed on algae, small invertebrates, and other organisms found at the bottom of freshwater rivers in southeast Asia where they are commonly found.
what help fish regulate how close they swim to the bottom
Some can be, but just the same, some middle and top area fish are bigger than bottom fish.Depends on the fish ;)The largest fish are top dwellers.
yes....and no. It lives on the bottom but it eats small fish so its kind of undecided
It doesn't matter if they are bottom feeders! If ya smell what the rock-fish is cooking!
is whiting a bottom feeder
gold fish
Flounder and Sole.
I would say none of these
No fish live under the bottom of the ocean
I suggest that you learn more about your fish in your aquarium. One of your fish might be a bottom sucker which means that they eat all of the dirt on the side or bottom of your tank. If one of your fish are bottom suckers, that's probably the reason why your aquarium is clean. If none of your fish are bottom suckers, than somebody must be secretly cleaning your tank for you.
No! :)No freshwater aquarium fish to my knowledge is poisonous.