I think I'm going to get a fluval spec v as a planted tank for a betta and want to know what plants would work in there with the low light. Also with decorating, I'd like to know if polished stones like these are okay for aquariums because I really like them. http://www.amazon.com/gp/aw/d/B0016KM78G/ref=pd_aw_sim_201_3?ie=UTF8&refRID=1YV6FDNK41A7RHXD9YPW http://www.amazon.com/gp/aw/d/B0019...hed+stones&dpPl=1&dpID=510GiKjNJiL&ref=plSrch http://www.amazon.com/gp/aw/d/B00EV...=AC_SX110_SY165_QL70&keywords=Polished+stones Or are there any types of polished stones I could look for that are okay for aquariums if I boil/rinse them (if that's safe) like amethyst, Quartz, etc? Any recommendations on substrate (maybe a plant substrate since I don't want gravel or any light colored substrate)? I will be getting a small piece of driftwood for the aquarium and some zen type ornaments (I want to find a cool elephant sculpture or something because I think that would be kind of zen looking).