saent, wht do you mean by the skimmer effect? if there are going to be filtering sponges in the first chamber, wouldn't that remove all of the suspended dirt particles, the skimmer would then remove the proteins and gunk. then we would have a bubble trap, leading to the biological and nutrient export chamber.
u are right about splitting the last baffle. i'll make it 5" and 6" glass panels, with a 2" gap
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