Hi, I have neglected the sump on one of my reef tanks for awhile and just noticed that bubble algae is growing in my 15 gallon refugium. The algae is contained to one corner of the refugium where it is growing on a pile of rock rubble. My question is, would it be unwise to place the rubble pieces with algae in the display for several tangs and blennies to eat or should I simply remove the rubble entirely? I have no idea if they would even view it as food, as they've never been exposed to it before. I also don't know how bubble algae spreads. Would them eating it result in a possible outbreak in the display? TIA