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I have a 48 in metal halide system with two 250W lamps and LEDs. I accidentally turned off the light when I cleaned the tank a couple of weeks ago and now one light isn't working. I replaced the old bulb and tried swapping the ballasts and the light still isn't working. I really love the MH shimmer effects and moonlights on my unit.

I was looking into the new Marineland LED system but I'm afraid my plants won't survive. I only have Vals, Saggitarias, Wendtis and Amazon plants but occasionally have put in some glosso and high light plants.

Any idea what might be the problem or should I just give the LED a shot. T5s are nice but they dont havve the shimmer effect and the ones with the moonlights cost a lot. Considering my investment on the MH system, I'm not ready to downgrade to T5s and shell out another hefty amount. :confused:
 

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hi
try swapping the ignitor over (small box with three wires) these cost about £7

if the lamp is double end then have a look at the bit that it slots into, they are prone to burning out.
hope that helps
andy
 
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