Fact Gathering for Fiddler Crabs
So I'm on a fact gathering mission for my 30 gallon that I'm in the process of resealing. I'm not 100% confident in my abilities to reseal this tank and as I don't want 30 gallons of water everywhere in my second floor apartment, I was thinking some sort of paludarium. Like previously said, my son has expressed a desire for fiddler crabs and I was thinking set this tank up as a crabitat.
I am thinking sand substrate, with sloped sides to make a beach area for the crabs with 2/3 being water and 1/3 being land. I already know the marine salt being important for the brackish water so that is in the plans. Here is my question, I'm thinking I'll have somewhere around 5-8 gallons of water in this tank (someone correct me if they think that number is too high or low). I'm aiming for lower density of animals in the tank overall, so I'm not going to put the max amount of creatures in the tank.
I'm thinking 6 total crabs, with 2 being Male and the rest female. I do want a sort of community within the tank but I'm thinking 5-8 gallons isn't large enough for a fish community. So leaning towards having about 8+ ghost shrimp and a nerite snail or 2 as part of the tank. I've heard that both shrimp and nerites can adapt to brackish, and if everything goes well with the shrimp and snails with the crabs then I may seek out some male endlers to add in there (they're so cute!).
What are we thinking? Again, this is just a fact gathering mission as I reseal the tank and begin to think what I want in there. There would of course be a lid and, most likely, a sponge filter in the water portion of the tank.