Canreef Aquatics Bulletin Board - MH distance from water surface?

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Canreef Aquatics Bulletin Board (http://www.canreef.com/vbulletin/index.php)

- DIY (http://www.canreef.com/vbulletin/forumdisplay.php?f=13)

- - MH distance from water surface? (http://www.canreef.com/vbulletin/showthread.php?t=17389)

martym

07-04-2005 12:29 AM

MH distance from water surface?

It is a DIY retro 175w 20k XM bulb, going over a 20g standard size tank. There is no glass or aycrilic between the light and the water. How far should the light be placed above the surface of the water? I'm thinking 12"-16". Does this sound about right?
thanks

mr_alberta

07-04-2005 12:51 AM

I believe that the light is usuall 6" - 8" above the surface of the water.

mark	07-04-2005 01:09 AM

water splashing on a hot bulb...

Invigor

07-04-2005 05:22 AM

I have mine about 5" from the water, haven't had any mishaps yet...knock knock.

Aquattro

07-04-2005 05:55 AM

I run mine about 8 inches off the water.

EmilyB

07-04-2005 06:16 AM

with all that flow ? and no splash...I find that hard to believe.

I run my DE shielded fixtures at least 8-10" and have to clean the splash.

I guess I must have surface flow.

Aquattro

07-04-2005 07:03 AM

Quote:

Originally Posted by EmilyB

with all that flow ? and no splash...I find that hard to believe.

OK. Nonetheless, 8 inches, no splash. After 3 months, the bulbs only needed wiping once.

StirCrazy

07-04-2005 12:47 PM

Quote:

Originally Posted by EmilyB

with all that flow ? and no splash...I find that hard to believe.

I run my DE shielded fixtures at least 8-10" and have to clean the splash.

I guess I must have surface flow.

ok I run mine between 4 and 6 inched off the water.

Steve

martym

07-04-2005 01:32 PM

Thankyou everyone. I will go with 8" :biggrin:

Murminator

07-04-2005 03:32 PM

Quote:

Originally Posted by reef_raf

Quote:

Originally Posted by EmilyB

with all that flow ? and no splash...I find that hard to believe.

OK. Nonetheless, 8 inches, no splash. After 3 months, the bulbs only needed wiping once.

What do you whipe it with?....just a damp rag?

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