I got some Red Handed Crabs on Sunday and after much reading through various forums I'm not 100% as to what is wrong.
One of the four crabs is upside down and has been all morning. I went to "fish" it out but it took a snap at my net showing it wasn't dead.
I've read that it could be having a bad molt, the water is too cold and the nitrates may be high.
The water is at 28 Celsius which is what I've always had my tropical tanks as as suggested by the store I purchase from and the water tests are fine.
I've also heard that the crabs like to be out of the water. I even asked about this "whether or not they'll try to escape" and was told they won't. - Unusual as I've always had good things to say about that store.
I've got a log going diagonally across my tank, the top of it is slightly out of the water. Would you suggest creating a platform of some sort for the crabs to sit on out of the water that they can climb the log to access?
I've kept tropical fish for over two years now and I thought I'd experiment with these Red Handed Crabs.
One thing that may be of importance is that there are four small green barbs in the tank with the crabs. There was a fifth but it was ill when I bought it and has since died.
Could this crab be going through a bad molt? Thankfully it's at the front of the tank so if needed I can upload a photo.
Also, should I make a shelf for them to sit on outside of the water?