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  1. jonnyjr

    Cheap 150w MH lamps?

    If your bulb holder looks like this then it will be fine http://img.alibaba.com/photo/280496599/ ... r.summ.jpg
  2. jonnyjr

    halide lamp: "dimple" is facing towards the water surface or

    It doesn't matter which way the dimple is facing. The light that is deflected is negligible. I always put the dimple facing up but that's just me.
  3. jonnyjr

    Halide + T5

    Having moved back from marines to planted tanks again, I am planning a 36x 18 x 24 high, high tech planted tank. I have sorted everything so far. But still have a niggling in my mind about lighting. I have a 250w dimmable halide ballast and reflector etc, I also have T5 starters for 6 x 39w T5's...
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