Thank you everyone for the help! I actually already have a bottle of seachem flourish. Lol. I'm still not sure if I want to go with the tetras. I may just make the tank just for Triton. One of my concerns with using sand as a substrate is compaction. I know you're supposed to stir up the dang every once in a while, but how do you do that with plants everywhere? I already have a gravel vacuum as well :) I plan on buying a bottle of seachem prime, and an API test kit online. I think I may just go with a mystery snail in there with my little guy.