Have a pair in a 80 gallon tank with 110 lbs LR, and 6" DSB. Also have 29 gallon refugium.
I owe a never decreasing pod population to pod piles.
Had these two in there for 4 months now. With a neon dottyback, midnight pygmy angel, and I still have tons of pods moving around everywhere at night.
These guys are fun, every time I stick my hand in the tank, they come swimming up. They know that anytime I stir something up, they will find a lot of pods hiding.
They will eat some frozen foods, but only pick at them because there is so much of their favorite food.