My Lawnmower Blenny was doing very well in my 125 g until I “rescued” a black-tipped grouper from a LFS that was going out of business. After about a week of what seemed to be peaceful co-habitation between the current tank occupants, the blenny was obviously worse for the wear (no damage, but was so exhausted that I scooped him out of the corner of the tank without a fight). By the way, the tank parameters are: 1.021; amm=0; nitrate=0; nitrite=0; phos=undetectable; calcium=380; pH=8.2; temp=79-81; it’s an All-Glass 125 FOWLR with 122# of LR and 150# of LS; lighting is 2 X 10,000 96W and 2 X 420 Actinic 96W. Anyway, I removed the blenny to my HOB refugium where he is eating and recovering nicely. Now the question (usually that’s the reason for these notes, eh?)….I’m considering relocating the blenny from the refuge to my 12g nano…parameters the same as above with the noticeable exception of lighting and 1.023 salinity. The nano has 13# of LR and houses X