Hi again, My #1 question is about getting driftwood for my freshwater tank: -- are there particular recommended types? -- key words to look for? -- any recommended vendors? Curious how to know if wood is fish-safe... a lot of vendors seem kinda sketchy. Of course will boil anything I get, no matter what. I had a small piece from a LFS that was kinda medium-dark and it leeched so many tannins (even after many boil-soak cycles). I don't mind a dab of tannins, but since I still have that piece, I have a never-ending supply. Would prefer next pieces to be less tannin-y. #2, I would like to find some small (river/smooth) rocks, but have read warnings abut where to get them and what to use. Any suggestions would be awesome. Would love some that contrast a little with black sand. Thanks for reading all my questions!