Bill, I'm a bit confused...now there's a surprise :-? :lol: :lol: :lol:
Whether it is an airstone, bubble wall, whatever, if it causes more surface movement doesn't it mean more oxygen?????
I've always had something in my 10 gallon with my goldfish. Now, recently I did use a bubble wall, but holy cow it didn't take much to realize that it was just too, too much, so I cut the bubble wand to make it smaller.
The other 2 tanks (29 gallon) have an airstone in them. But how can you tell if it is too much, I mean the larger bubble wall in the 10 gallon was really obvious.
The tank with my barbs & red eye tetras, I thought perhaps that it was too much with the airstone because the fishies were staying more in one end of tank (posted that question in another thread).
I've obviously had my hands in the tank & I can't tell if there too much...ah...movement (if you know what I'm trying to say, but then my hands are bigger than the fishies :lol: )?
The barb tank also has a bigger filter than the other 29 gallon so maybe I don't need an airstone at all, other than to give a different look so to speak, what do you think?