I researched and would like to verify with the experienced. I would like to have a live plant for Nushi's tank. She is an active girl and I think she'd enjoy the extra cover. My mother has offered to "root" an African violet for me with tap water only-no African violet fertilizer. The substrate is coconut fiber and it's reasonably deep (her enclosure is my avatar). Is there anything I should be aware of? Are the plants safe for herps like my research indicated? How big should I let it grow before I put it in her tank?