Lighing question: too much?

[zanoshanox]

Hey guys, Right now on my 20 gl long tank all i have for lighting currently is my Coralife 2x65 w PC. I plan on adding a 175w 10k MH fixture to it too. I was wondering if this would be ok or if that would possibly be too much light?
All oppinions welcome.

 

[coachklm]

not to much light but too much heat..... your water will boil ...

 

[reefnut]

That's not to much light... but remember lighting is only part of keeping delicate animals.

 

[reefnut]

Originally Posted by coachKLM
not to much light but too much heat..... your water will boil ...
That's a little strong... heat may be an issue but it can be overcame.

 

[zanoshanox]

What if the mh was 8-10 in off of the water? (I have a glass top)

 

[db]

You must remove the glass top. You will have major heat issues with it on. You would be fine at 8-10 inches, but you will need a fan blowing across the water surface. I used to run a 175 on my 20 and it stayed pretty stable this way. Make sure to have good surface aggitation as well.

 

[fanker]

shane if ur talking about mine its a 250w

 

[zanoshanox]

ooooh alright, well maybe I will upgrade then.