About two or three weeks after adding TBS rocks to my tank, I noticed a cute little crab crawling around under a rock. He was very small and wasn't doing any damage but I decided to keep an eye on him just in case.
He has molted twice in the past three weeks and is now over an inch wide. I never realized they could grow that fast! Anyway, I came home two days ago and noticed huge caves had been dug under my rockwork. I can't have my tank being torn up by a crab, so I decided that he would have to go.
I came home the next evening to find the crab on the other side of the tank. He had chased my brittle star out of his hiding place and the star was now wrapped around a powerhead near the top of the tank. The crab had climbed the rocks and was trying to reach the starfish. Not good! The crab has been relocated to my sump where he will live a long and happy life--but only if he behaves!
He has molted twice in the past three weeks and is now over an inch wide. I never realized they could grow that fast! Anyway, I came home two days ago and noticed huge caves had been dug under my rockwork. I can't have my tank being torn up by a crab, so I decided that he would have to go.
I came home the next evening to find the crab on the other side of the tank. He had chased my brittle star out of his hiding place and the star was now wrapped around a powerhead near the top of the tank. The crab had climbed the rocks and was trying to reach the starfish. Not good! The crab has been relocated to my sump where he will live a long and happy life--but only if he behaves!

