A friend of mine set up an NPT and mistakenly got the organic choice garden soil instead of the potting soil. It’s been set up for about 8 weeks now. … As far as the aquarium in question is concerned, as Diana said, it is hard to recover from that much of an algae bloom. I would bite the bullet and restart the tank. And maybe this time, the cheapest unenriched top soil that was available might be used, after soaking and/or air exposure. Good luck! …

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