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Reef Aquarium & Tank Building Forum

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  1. S

    RO/DI filter replacement

    This may be simple question, but....I need to replace the filters on my RO/DI unit (Captive Purity 4-stage Pro System) and was wondering if there was anything else i needed to do other than shutting off the input water valve prior to removing the existing filters? Then, after getting the new...
  2. S

    MH Bulb Question

    I have a 150 gallon reef tank with 250W XM 10,000K MH bulbs. I recently just changed the bulbs for the first time and two of the bulbs seemed a little more "yellow" than before. I turned the bulbs a little and the output on one of them changed to the more desirable whitish-blue but the other is...
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