probably a controller like the tunze, taht doesn't actually cut power, instead it just cycles down the power to say 20-30% so that it really never stops running just the spin is so slow you dont get much/any current from it...
the tunze systems work like that, but cost next to nothing... now if you can DIY
that, I might test it
75g w/ 30g sump, 160# LR
, 60# sand: Inverts =18 turbos, 30 nassirus's, 40 blue leg's, 5 emeralds, 1 CBS, 1 skunk cleaner, 1 brown gulf shrimp? and various other LR
hitch hikers yet un discovered or un-ID
Fish=1 yellow tang, 1 yellow headed jawfish, 1 pink/blue shrimpgoby, 2 perc clowns.
Future fish = 1 sixline, 1 lawnmower blenny