do i really have to agitate the water surface?
I've read that surface agitation is mainly for oxygen exchange for fish to breath and it also makes your water nice and clear...
what if i don't have any inhabitants, will i still need to agitate the surface?
and if i do add oxygen only at night via reactor(like a co2 reactor), wouldn't that be enough oxygen supply for fish? --and wouldn't that make my water clear as well?