Sump baffles

[Crooked Reef]

What is the purpose of these short baffles in the bottom of the main section of the sump? The don't go all the way to each side but are staggered, one touches front but not back, the next touches the back but not front etc..

 

[Sk8r]

Good question. Darn nuisance, in trying to position a skimmer in that section. It may be a notion of causing deposition of particulates, but I'd prefer a level middle chamber floor.

A sump needs an intial chamber to calm the inflow; possibly a very small chamber for the heater, but not necessary, and an over-under pair of walls (which can comprise the heater chamber) to stop crud or algae from a fuge, or stray fish, from getting to the final chamber where your pumps are.