Hi i am going to set up a 40breeder 36x18x16 it will be rimless with the bulk heads in the bottom it will be filter by an resun canister it will have pressurize co2 tank and the substrate will be amazonian 1 and 2 with power sand and decorative sand the plants that i want to keep will be bacopas carolianas,echinodorus tenelus,crypts,anubias,rotola macandra green,xmas moss blyax japonica,dwarf hairgrass,and another hight light stem the problem is that i don't know how many watts of t5ho will get the plant to grow fast i want to keep it to a minimum watts because i don't what to spend more than 200 for 4-39watts t5ho will 2-39watts light do the job or a need to have more than 2 39t5ho i will put photos of the aquarium tomorrow