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  • TK1!!
    TK1!! replied to the thread Anyone Here Using ARA-290?.
    pH strips similar to these can be purchased ($3.99 for two). After mixing the ARA with bac water, use a syringe to pull out a very small...
    • 6958b0c42e09b8d0b0377a2a0a36ebe7b6a4ea4a3a4453ae00f1377b05e9b363.webp
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