i've only kept newts and now since i have more room i want to expand and get 2 blue-spotted salamanders. their tank is 20 gallons and i want to know what i'll need, how to set it up, and besides earthworms what else can i feed them? they live in my grandmothers cellar and so i thought it would be ideal to use the same soil in which they live. is it ok to use devil's ivy clippings? can i plant a clipping? what kind of moss can I use? can it be from out side of my granmother's house since that is where these sali's live?