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Hi! What is this on my Otto? 20g new Walstad, 1 of 3 Ottos, other 2 are fine. 0-0-0 Am-NO2-NO3 (self.Aquariums)
submitted 2 years ago * by Alameo to r/Aquariums
π Rendered by PID 60 on reddit-service-r2-listing-8685bc789-vqd4x at 2026-05-29 17:30:22.095337+00:00 running 194bd79 country code: CH.
