I have now got 60kg of alphagrog and added the spraybar i made with a 400 micron filter sock over it to catch any fine muck particles.
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https://www.youtube.com/watch?v=AZWA7GvJSJs
So still not done this yet bogwood has been in water for over two months and one of the main pieces is still floating
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https://www.youtube.com/watch?v=7ggNqd7b99U
The water is still a bit murky but you can actually see a couple of the Koi now.
I have a new UV clarifier and a Pond Vac to use on this pond and review over the next couple of days.
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https://www.youtube.com/watch?v=V_KcXL3GjGM