So I am getting a used 20 gallon long tank from a friend and it had lizard in it and were upgrading it so they gave it to me. And I wanted to have a oddball tank so then I found mud skippers and I know a lot about aquatic life so I wanted to have a challenge with amphibious fish and so I have some questions that I need help with. I would like Indian mud skippers. But if possible have one African mud skipper by himself 1. How do you ventilate a mud skipper tank because the cover is mesh and that would take out all the humidity and also how do you prevent mold if i cover the mesh 2. How much humidity do I need for mud skippers, and do i need a humidifier 3.Can I feed mud skippers freeze dried blood worms. Do I need to feed them veggies 4. How many Indian mud skippers can go in a 20 gallon 5. Can I use gravel, or if I use sand how will i vacuum it 6. Can I keep other tank mates with Indian mud skippers. (No mollies I already have them in a community tank) 7. How do I clean the land section of the tank from the poop 8. Are there any brackish terrestrial plants other than mangrove 9. How do I make a land area from the back of the tank. (I just don't want to pile my substrate to the side) 10.In my area it is cold and I have a heater for my water but how do I heat the land portion. Also for the heater how do I shield it from the mudskipper Sorry for all the questions, I just don't want a tank disaster. Any additional information is apperaciated. I am also aware they need brackish water and know how to make it. Lastly what filter should I use.