Metal Halide

[dayzofspeed]

hi all, how many 150w mh lamps would i need for a 4ft tank, cheers

 

[nkd5024]

Dayzofspeed,

For a 4ft long tank you should use two Metal Halide's.

What depth is the tank and how many gallons is the tank though?
I have a 75 gallon tank that is 4ft long and I have two 250watt Metal Halide pendants.

Nick D.

 

[dayzofspeed]

Dayzofspeed,

For a 4ft long tank you should use two Metal Halide's.

What depth is the tank and how many gallons is the tank though?
I have a 75 gallon tank that is 4ft long and I have two 250watt Metal Halide pendants.

Nick D.

its a juwel rio 240 approx. 240 Litres, Measurements: 121 x 41 x 55 cm

 

[woody88]

I'd say 2 x 150w halides but depends on what coral you decide to keep.
Most photosynthetic corals would be fine under those.
T5's is another option. Cheaper to buy. Cheaper to run.

 

[ben1987]

id either go twin 150s (preferably with T5 actinics) or 6 T5s(preferably ati unit with individual reflectors and built in fans) if it was me.