hi all. first post. while doing water changes this morning, my wife was trimming house plants. i was wondering if i could put spyder plant in my 25 gal. that has been cycling for 1 week? i realize they will not live, but i was thinking it would look cool until i get fish & plants for it. or could this poison my tank? tank has lake sand & gravel mixed substrate & 2 pcs. of lake driftwood. THANKS, DOC.