Originally Posted by costa13
you can get an emerald crab because they eat bubble algea.
i have emerald crabs.
They dont seem to be touching it.
i have 2 in my 29 gal. Im not sure how many i would need
just take the rock out and knock them off....they are very hard and you probably will not pop them....
for the glass just scrape it off but have a net near and catch them....helps if you shut off pumps....