So far i have a 20watt lighting for my tank. and i have java moss,anubia nana,anarchis and some sword grass i think? not sure about that one because i got it from my friend. would my 20 watt aquaglo be strong enough? my main question is this. am i able to use my brothers old light setup that he had for his salt water setup? or would it be too strong? im not sure what kind of lamps he has but i do know it has a 3 light changer. the bright,blue,night light. sorry dont know the correct terms. any help?