planning on setting up a rb pirhana tank... i wanna have four to five of them in there and i was planning on doing live plants... what size tank should i go for? I know i should get a filter system rated for a tank bigger than what i get, and i was planning in using a sand substrate with gravel on top... but if that wouldnt work for the plants then what do ya'll suggest? any helpful hints or suggestions or welcomed greatly! thanks
