Tank setup help

Hello friends, this is my 10 gallon tank, it has 2 purple pinchers as residents. I have a bigger fresh water dish and a smaller salt water dish, I have a climbing bridge made from stick and moss thing wrapped around it, as well as a small stick path leading up to it, I have 3 little hides , and a food bowl which right now has hermit crab food from store as well as some almonds chia seeds carrots outs, etc. Lastly I have a heater on the back and a temperature /humidity gauge. It is typically around 80% humidity and 74 F. How can I improve from here. I currently have no space or money for a bigger tank but hopefully in the future soon.