uv sterilizer

[ffishermen]

hello, i'm new to the board & i have a couple of questions.
first, i just put in a 30w uv sterilizer. i would like to know if it would stop ich & will it prevent coralline algae from growing?
second, how long does it take for c. algae
to spread.
i have 100g w/power compacts 260w, 150g w/d, protein skimmer, mag350

 

[wamp]

IMO a uv is bad for a reef. It will help with parasites and bacterial infections but it will also limit your copepod population which are food for fish and crabs. It will help with algea problems however I am not to sure about coraline algea growth. This is a good algea to have in a tank. It is the cement of the sea. As far as growing coraline. It depends alot on calicium and alkalinty of your tank. I have had better results growing coraline with Kalkwasser than with my Calcium Reactor. Sounds backwards dont it? Maybe due to diffrent elements.