I'm on Amazon prime and came across this lighting unit for $71. I want to change my lighting situation as the only light I have on it is the one from my 55 gallon kit and it's not very bright. Also, a little color in the aquarium would be fun, for all I get is the standard light ! I want to know if this is a good set. If it is, I plan on buying two, since the 24" is the one on sale currently. If there are better ones, let me know! Also, how many filters does a 55 gallon need? I have the aqueon 55 power filter and was wondering if I should /need to get another filter? I am looking at the aquaclear 70, as it is on sale for $31. Let me know your thoughts as the sale is ending very shortly!!! Thanks everyone!