Where do I get the bacteria to ripen my slow sand/rockwool filter?
You are here: Home » Grow FAQ » Hydroponic system construction » Slab and tray systems, Slow sand/rockwool filter » Where do I get the bacteria to ripen my slow sand/rockwool filter?
The bacteria needed to "ripen" your slow sand/rockwool filter is in the atmosphere. Just running the filter for one month will give the necessary bacteria time to innoculate the filter.
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- Where do I get the bacteria to ripen my slow sand/rockwool filter?
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