I picked up a lettuce nudibranh today for my 10 gallon. I have a bryopsis problem in that tank after all the scrubbing and rock removal and filter cleaning you can do it is still there. I have been MAG dosing for 2 months now with no change. I know they say 3 months before you see a change. The lettuce Nudi is supposed to eat this stuff up, so the LFS ordered 3 of them although I only wanted 1. If this guy starts eating the Bryopsis I might pick up another tomorrow. Lets see what he can do.