ok i bought 29 gallon tank i guess thats the size. to be honest i have to the perfect spot for it thats why i bought it i love it. it is beautifull. but i thought i would be easy put some water some stress coat some fish i dont have to do any thing but feed and change water WRONG. but know im hooked i love it i love to watch them and i want to make it work but im having some issues. i have easy fish or from what im told their easy mollies, platies, a crab, and a tiger barb. but keeping them alive not so easy do all first timers have this issue. i have never in my life not even as a child had a tank not even a gold fish. but the guy at pet store said it would be easy. im i stupid or is it possible. if any one has any thing for me please help if not for for my fish