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ifc

  1. Courtneybst

    Can't figure out the IFC Calculator, need help!

    Hey everyone, I've had a few attempts to use the IFC calculator to make some DIY fertiliser and I can't work it out! I currently use Aquarium Plant Food UK salts to make their standard EI. However, I want to try and recreate a leaner fertiliser similar to APT Complete and use more root tabs...
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