Uncleof6,
I always enjoy your commentary. I think I'm going to try it without teeth and put some gutter guard or something in the overflow to keep fish from jumping in. The previous owner of my tank had it loaded with bioballs and some kind of netting to keep them submerged and fish out. Thoughts?
BTW- Good call on the black reef safe silicone!
Quote:
Originally Posted by uncleof6
Teeth reduce the surface skimming ability of an overflow, by half at the very least, and often more. The teeth also create a "louder" overflow, requiring a far lower flow rate for silence.
Considering, that the purpose of an overflow is surface skimming, the teeth are rather counter productive.
Even with teeth, if a fish wants to get in the overflow it will. Usually, they take the trip down the drain, and you find them swimming happily in the sump. A fish would not get stuck against a screen over an overflow by suction, (water flow is around the edges), but may suffocate flopping around on top of it, or hit the floor. Longer length "weirs" (overflow edge) with thinner layer of water going over, cut down on accidental trips to the sump.
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