Copepod explosion in reef tank?

[spit.fire]

ive got a 40 gallon cube tank with a 33 gallon sump on it and in the past few days ive noticed that the glass is covered in copepods, there are no fish in the tank other than a scooter blenny and im wondering if that is why, its moderatly stocked with lps and softies, a carpet anemone and a tube anemone.

whats the best way to catch them to xfer them to my other tanks?
are to many copepods a bad thing?

also the scooter is getting lazy, it no longer moves to get its food, it lets the food come to it