Okay, I have a really big tree stump that will make constancy with the ground at multiple points. The tank will also have a clay background with ledges and tons of room to move, it's a 10 gallon but I'm saying it will be a 15 gallon with all the spaces they can move around with, clay background will cover 3 sides and the tank will be vertical. Another Q, could I get away with feeding fruit flies dusted and then springtails along with moths?