I just got a 29g long tank and plan on running a good substrate,sand and gravel. I have drift wood rocks and ill be planting heavy. As for my stock I will have 12 serpae tetras 6 green tigerbabrs and 6 tiger barbs and 1 redtail shark.,these are my 3 fave fish and wonder how t they will do. There will be plenty of places for Mr red tail to