Looking for lighting advice

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In process of starting a marine reef tank. I have purchased a 4ft tank and I know somebody who is selling a 3ft Plus 6 T5 Silver AquaLumi Aquarium Light. Although it's a foot shorter would it provide enough light to cover the whole tank?

Thanks

Asco1104

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Reply #1

Hi I would think you would get some shading at the edges but it might be ok, most units you see over tanks are the whole length on the tank. Saying that if it’s central it will only be half a foot either side, if it’s cheap it might be worth a go.


Tim

fr499y

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Reply #2

I used to use a 3 foot unit on a 4 foot. You get a little shade on the ends but its a good place to put lower light corals

instanteden

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Reply #3

Thanks for the information, next question is, the tank and cabinet I have would mean the light would fit inside the hood but would virtually fill all of it except about 9cm either end. Do these lights produce much heat and would being so enclosed it the hood cause it the overheat?

Asco1104

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Reply #4

They get very hot and it will reduce the life of the bulbs, you could rig some pc fans up to cool it.
Trouble is you might run into problems in the summer and have a hard time to keep the water temperature down.


Tim

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Mike

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Reply #5

You will run into all kinds of heat problems. The unit will overheat and die if it's not got ventilation through the hood. You'd need to install a couple of fans, one blowing in, one blowing out would get good air flow.

Even then, in summer you'll struggle to keep the tank temperature in check. Normally T5 units are hung above the tank, 8 to 12 inches above to give plenty of air flow and to avoid overheating the water.

LED units will heat the water less.
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instanteden

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Reply #6

Ok thanks for the information, not sure I will go for that then. Any recommendations on good lights for a 4ft tank  that can go inside a hood, not produce too much heat and work over a wide variety of fish and corals etc at good prices?

fr499y

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Reply #7

LED's or T5's with a seperate controller could work. Again, would need some ventilation. Other option is go lidless and get a mesh cover to stop any jumpers. What tank is it?

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