[fkshiu]

Pros:
-Helps clear up some parasite and algae issues

Cons:
-Is not a panacea for all parasite and algae issues
-Requires regular cleaning and maintenance or it will lose effectiveness
-Often undersized/underpowered relative to tank size
-Replacement bulbs (which are essential) are usually quite expensive
-May kill some planktonic foods that corals and other inverts feed on