Status:
in spite of an 85% water change, NO3 spiked back in 24 hours to about 200 mg/l. I believe as long as I use tap water, and add the needed ammonia, there's not much I can do about it.
Solutions:
- using rain or demineralized water: although this would indeed easily solve the problem, both of them will then need to be corrected for pH and hardness, which are indeed perfect in the tap water... What a waste.
- using a biofilter medium able to help, such as Symbiont. The one I have, however, is Eheim Substrat Pro, and is said to be comparable, so for the moment I won't go this way.
- a complex and expensive NO3 filter, with all the extra risks implied. No way.
Also, NO2 appears to remain stable to about 10 mg/l, possibly stuck to this valuebecause of the high nitrates. Will the cycle ever be completed, with this stall?
in spite of an 85% water change, NO3 spiked back in 24 hours to about 200 mg/l. I believe as long as I use tap water, and add the needed ammonia, there's not much I can do about it.
Solutions:
- using rain or demineralized water: although this would indeed easily solve the problem, both of them will then need to be corrected for pH and hardness, which are indeed perfect in the tap water... What a waste.
- using a biofilter medium able to help, such as Symbiont. The one I have, however, is Eheim Substrat Pro, and is said to be comparable, so for the moment I won't go this way.
- a complex and expensive NO3 filter, with all the extra risks implied. No way.
Also, NO2 appears to remain stable to about 10 mg/l, possibly stuck to this valuebecause of the high nitrates. Will the cycle ever be completed, with this stall?
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