This is just similar to what DrZachryus is planning on doing with his monster tank...i wanted to add those grass like plants that will grow all over the bottom floor of the tank...you can see a pic of it on DrZachryus thread of his plan. So like I know Co2 is needed to keep plants healthy and lively but can I just keep added plant vitamins and liquid Co2...? Their will be lighting but not too bright and strong but enough to penetrate a 3' deep tank. Its a amazon like setup with like those big tree roots like wood and lots of driftwoods and sandy substrate.Some river rocks will be added, it's like dieselmacks old tank look when he used to have his monster cichlas. I will have 4 powerheads but in the 2' deep end just so i won't have any stagnant spots in the tank and it will be like 2 powerheads at each end of the tank lenghtwise and the powerheads will be place say one at each corner of the tank. I will have some more plants to add like floating plants as anything other plants would just get destroyed by my cichlids... I won't have much in it, Silver Arowana, 2 Cichla Orinocensis, Female Red Terror, Male Red Devil, my Male Umbee, pleco, and 9-12 Clown Loaches as clean up...and my Oxydoras Niger Catfish. When and if my umbee gets larger i may just sell him or get him his own tank like a 360 gallon tank...so flame away with my idea or just give me your personal opinion of this