read up on sites relating to planted tanks, or alternatively,search the forums as always reccomended by the older members.
key words: planted tanks
www.thekrib.com
http://www.easyfishkeeping.com/tropi...sfulplants.htm
http://www.aquahobby.com/
http://www.frii.com/~gbooth/AquaticConcepts/Co2/
not so sure about costs, i have two 2 feet tanks.
I guess basic requirements are understanding of each fish species needs(ph,gh,territorial,behaviour,introducing fishes in a new tank,cycling a new tank), plants needs,(ph, co2, lights, fertilizer).
Have fun reading up, and be sure to know the requirements, if not you'll end up learning the hard way, trial and error, which can be expensive.
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