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Remineralizing during fishless cycle?

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Do you guys remineralize your RODI water when doing a fishless cycle? I'm asking cause I have been stuck at .25-.50 ammonia for about 3 weeks now. Nitrates have been going up and nitrites have been at zero.


I've tried everything from 30% 50% 90% water changes to reseeding with a second bottle of tetra safestart but the ammonia remains constant. PH is at 6.5 and temperature is at 72 degrees. No idea what I can do now and hoping for you all's help. Thanks!

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  • 2 weeks later...

I use remineralized water from start to finish. How long has to total cycle taken thus far?

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