To notch or not to notch....
What are the advantages/disadvantages of the notches in the overflow? I know it keeps things from spilling over in there, but I'm thinking about doing it smooth (I like that look better) with some gutter guard attached from the inside that sticks up an inch or so above the overflow. It seems like this would be a better deterrent to jumpy fish too.
Also, if I do a closed loop system as pictured in the last post, how far below the surface should I put the intake? I was thinking a couple of inches, but I don't want it to suck air... I'll probably run around 600gph through it.
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