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a few basic MH questions

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  • a few basic MH questions

    ok i just got a pfo reeflector, M58 ballast, and a 250w XM 10K SE. i've got a few questions before setting it up.

    on the XM bulb box, it keeps saying "only operate the lamp in an enclosed fixture with a lens/diffuser material able to contain hot lamp fragments." well, the pfo reefflector certainly aint very enclosed, and i'm aware that many people dont have canopies. do i need to enclose the whole thing in a canopy?

    another one: "never expose operating lamp to moisture" would mounting the bulb 9-12 inches over the water be enough to keep moisture away from it?


  • #2
    No lens is needed and I run my 400 watters 8" off my water and no problems if you do not have water splashing around.. Water can and will make a MH bulb explode if it gets on it while its hot.. With DE bulbs glass lenses are neccesary but SE that is not the case at all...


    • #3
      so do i need to enclose it in a canopy? i dont want to cause the heat.


      • #4
        No you do not need to enclose in a canopy. I have beed running a 400w se about 8-9 inches off the water and no water splashes get to it

        Tank Specs:60g Cube SPS/Clam tank, ASM G1x Skimmer, DIY ZEOvit Reactor, 1x400w EVC 14k, Marine Life Aquatics CR-250 CaRx (RIP)

        Not sure yet.....Build Thread to come!


        • #5
          Nope no need for a canopy as Sean mentioned.. Best without as heat will dissipate instead of heating your water up...


          • #6
            ok, good. i was just worried about the bulb exploding.

            i know these reflectors are designed to be mounted perpendicular to the tank, but mounting them parallel would work too right? the tank is only 20g by the way.


            • #7
              Yes either way will work fine...