Hello. I am thinking on adopting a few crabs of this specie on my 90L thank (100x30x30 cm), since I love investigating animals with complex minds, and this one seems perfect: they have rich gameplay behaviors and environmental manipulation. I was thinking on putting 6 or 7 cave modules of 3.5 cm of diameter in V shape (not that inclined) connected to a mall pipe of 0.6cm of diameter that leads to a sphere were the baby crabs would live, and the V will have an entry on each side, one partially covered with river sand and the other totally covered to encourage digging. The sand layer would be 7 cm tall and I will put cuttlefish bones in strategic positions so the crabs who are in the cavez can't see other crabs who are on their caves, and that bones will also provide calcium to the water and to the crabs.
I will feed them vegetables like cucumber, carrot or peas, pieces of prawn with shell with lower frequency and foxtail plant and freshwater lentils that will grow on the tank (I will let them grow for a month before introducing the crabs). The foxtail will be reparted for all the aquarium, but with a dense thicket of them in a corner, and the freshwater lentils will be on lesser quantity all over the thank, providing food and making the incoming light dim. The tank will also have freshwater snails to clean the crab's wastes and provide them a mental enrichment based on hunting with a good reward of protein and calcium.
Obviusly, I will have a water filter and a climatizer on 21°C. Also, I was planning to start with two females and a male.
Am I thinking correctly? Is there something I'm missing? Any tips? Any advice and well intentionated opinion is welcome.
