Same exact batteries, brand, rating etc. One is a little newer but the older one hadn't been used and was constantly on a trickle charger.
I may turn the smaller perch tank into a centralized fishless tank for serious aeration and a foam fractionator. I don't like the way the yellow perch swim around and around this smaller deeper tank using up a lot of calories which could effect their growth rate. I think the diffuser causes too much turbulence in this smaller tank of the two. It's not the spray bar itself because I temporarily turned off with no effect. However when I turned it back on and turned off the diffuser may of them slowed down and suspended in the water column which is what I'm more used to. Could have been curiosity or mild concern as to the sudden change. However I'm going to try it longer term monitoring D.O. and see what happens.
The large tank can handle them all and is on the same biofilter anyway. Another advantage is I could make the fishless tank a better remover of suspended solids if no flow is going to it's center drain.
Last edited by Cecil Baird1; 12/30/11 04:25 PM.
