I am somewhat confused about UV
Sterilizers. I have seen them with power heads. Some connect with canister filters, I do not have room behind the tank for one. I have seen drop in units, suggestions for a 55 gallon? The filter I am using is a Fluval 306. My 55 Gallon tank has a 48" bulb, I have read it only needs 8 watts. Can I find a bulb, 2 prong on each end for this. What are the pros & cons?? Suggestions? Thank you.