Ive always been told its not good to stir the sandbed. Get snails that sift thensand or a seastarI use big black 2x4x12" foam blocks, one on top of the other.
The level in my sump varies between 5-8" deep each day from evaporation that my ATO replaces daily.
Over the 17 years my tank has been running the amount of detritus these foam blocks has removed is unbelieveable. If I had to guess I would say it is probably a minimum of 50 pounds and maybe as much as 100 pounds.
The drain from my fuge bypasses these (letting pods go directly to the DT) and I rarely find an amphipod or mini star stuck to them which I pluck and throw in the DT where it is devoured before it reaches the bottom.
People that use no mechanical filtration and never vacuum or stir their sand bed, I can hear your tanks ticking from here.
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