Yesterday I went to Aquatica where Shaun talked me into getting my first acro , A tri-color acro is what he called it. I was skeptical, because all I have on my tank are three 96 w pc's (2 50-50 bulbs and one actinic) but he assured me that it would be able to grow under that lighting, so the price wasnt too bad , so I thought I would try. But this morning I was looking at it closely and saw two little crabs in it,(I think) they seem to live in it, and is causing quite a stir with my fish, they are very curious. My question is .. Is this a normal thing for acros, and is this a positive for my tank or should I be concerned?
Brad