While watching the reef aquarium with A tonight, I watched as the enormous turbo snail padded along the front glass. He’s grown a lot since he was added to the tank; he’s at least 2.5 inches across. Then I noticed- there is a small bristle worm living in his shell! I tried to take a picture that would really show the two, but my stupid camera would not focus on the right spot and by the time I went to read the owner’s manual, the snail had shuffled off elsewhere. Too bad, or I would have found a cutsie interspecies picture page and posted it.
Hopefully the tank’s not too infested; bristleworms can either be harmless or can grow to be a giant nuisance. Speaking of infestations, my tank is so full of Aiptasia that I’m considering giving up on keeping any other sessile animals. The remedies I have tried are either ineffective or they require injecting each anemone. Anyone with an infestation can tell you that it would take hours to inject all 300+ of them, and who knows if it will work, or just release stinging cells into the water and poison the tank.
Buying a copperband butterfly (Chelmon rostratus) to eat them just seems irresponsible, as the butterflies often die soon after their natural food is gone. I recently read that the seagrass filefish (Acreichthys tomentosus) is hardier, plus they are such unusual fish. I can’t find anyone who sells them though.
Does anyone have any bright ideas?