lawnmower blenny feeding question

[stingythingy45]

What would you feed if you plan on QT'ing the fish?
Kind of defeats the idea of having an algae eating fish if you have to train it on prepared while QT'ing, or am I missing something?

Algae sheets and maybe formula 2 green cubes.
It also defeats the purpose if you introduce a parasite and need to QT everything.