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dry dosing

  1. A

    Fighting the BGM

    I'm currently holding my own in my battle with the dreaded BGM (Blue Green Menace - aka cyanobacter), but the battle lines have been pretty static for a few weeks. 1. Size of tank in litres. Nominally 305L, but after losses due to substrate and hardscape it holds 240L 2. Age of the set - up...
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