While scrubbing the glass of algae in my 20 gallon high, I noticed my pair of GBRs coloring up and attacking the scrubbie and my hand. They were not scared of it and I would not let them bite me which is what I think they'd absolutely do! I know they're just fish, but I don't want to get bit by these monsters lol. How should I go about scrubbing the rest of the tank? Should I let them bite me? Should i net them temporarily? Are they protecting eggs? I haven't seen anything yet. Thanks for your help.