lighting question

[slater]

just wondering how close to put my lights to tank? just got a 175 MH 10000k to accompany 2 40 w actinics 1x 10000k n/o 40watt and 1 20000k n/o 40watt/

in tank i have torch coral frogspawn finger leather elegant all right now are situated about 4-5 inches from surface.also have 100lbs fiji rock green mushroom ,brown mush gorgonia's


any advice ?

thanks

 

[Unarce]

Most would agree that the minimum is 6" from the water for metal halides.

 

[paats]

Watch the temp on the tank also.I ended up hanging my MH lights 14 inches above the water because they drove the temp up too high.

 

[ZooKeeper1]

Why not use fans? your losing alot of potential with your lights that high.

 

[Anonymous]

mine are about 8in but i think im gonna lower it...if you dont have a cover to protect the bulb i would recommend about 8in above if you have a cover or glass protector 6in is okie dokie...IMO

 

[ricky1414]

Mine are about 5 inches above the waterline. No noticeable heat transferred to the water.