PH control

Discussion in 'General Discussions and Advice' started by Theotauber, 4 Apr 2013.

  1. Theotauber


    12 Apr 2011
    Likes Received:
    Cape Town
    Hi All.
    Im new to this forum, I have a Koi pond, so not really a "Reef" guy. Im starting a hydroponic system and need to bring my PH down. I just got recommended Alluminium oxide by Stodels. I believe this is a very bad option for hydroponics or fish.
    can you guys recommend something and were to get in Cape Town.
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