Heat

[Gibbie_And_Clowns]

In a 75 gallon marine tank will heat from a 150-200 watt metal halide lighting fixture heat-up the tank?

 

[Igor The Cat]

yes MH will heat up the tank, depending on how close the bulb is to the water and if it is HQI or single end the temp will be different, depending on all this and you climate you may need a chiller at least during the light times of day.

cheers

-Java

p.s. wrong forum.

 

[Gibbie_And_Clowns]

yeah, just relized i posted in freshwater

 

[TheFool]

Depends on the room as well - if it's well ventilated and cool it's likely not a big deal.
As to whether the lighting has enough 'grunt' for clams - how deep is a 75?

 

[Gibbie_And_Clowns]

21 3/8" deep

 

[Lorna]

less the sand depth that is.......I have a crocea and a derasa on the bottom of my 75g under 2 x 150w 14K bulbs and they seem to be thriving.....

 

[Joe Fish]

Cooling fans usually do the trick.

 

[Gibbie_And_Clowns]

well what i want to end up haveing is: two diffrent fixtures, Metal H. 150-200 watts each. 10-14K. Bulbs in the one fixture. The other Blue actinic's maybe?

 

[Joe Fish]

I run 2 - 250 watt MH with 2 - 110 watt vhos. My mh bulbs are my daylight bulbs and my vho are my actinics.

 

[Gibbie_And_Clowns]

sounds good! thats for your 55gal?

 

[CoolWaters]

Cooling fans usually do the trick.

or lots of PC fans lol. they just last longer. IMO

what about the heatwaves (if u have any)

i would hate to live in los vegas right now...they hit 126 degrees...

 

[Gibbie_And_Clowns]

usually dosent get more than 100 degrees around here, and it has to build up to that usually.

 

[Joe Fish]

Yeah, I just wired up a new cooling fan setup. Now my temp is a steady 81.

I have a 12v fan cooling fan blowing in and a temperature sensative fan for the exhaust. They only turn on when the MH are on. Seems to be working quite nicely for me.

 

[Gibbie_And_Clowns]

thats good to hear joe! im still working on getting the new tank, but i'v learned quite a bit i didnt know before. And fans on the mh just seem like a good idea unless your trying to cook your fish

 

[Gibbie_And_Clowns]

or lots of PC fans lol. they just last longer. QUOTE] or how about Xbox 360 fans? there small, powerfull, and very quiet. Although to get those fans you would have to rip apart a 360, but it just so happens i have one in peices right now!

 

[Joe Fish]

Any 12v fan will work.

 

[TRe]

remeber fans = more evaporation...just keep an eye on it

 

[Joe Fish]

Oh yeah, don't want to forget that. If you have an auto-top off it makes it easier.