nitrate levels for plants and fish...
Hi..
my nitrate levels in a 120 are pretty high (for fish
anyway - around 40-50)
Hmm.., I suppose 10-20 mg/l (ppm) were enough..!
But how is the nitrate level of your tap(?) water..?
What's about water changes..?
And how is this tank stocked and fed..?
--
cu
Marco
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