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It's actually the nitrate levels that spike. I haven't heard anything about the nitrite levels.
I'm in the process of doing this now on my BC as well.
Beanfish - were you able to do this all at once? Or did you remeove the bio balls a little at a time?
As for the LR to be covered, it does need to be submerged, or it will probably have the same effect as the bio balls. I may have to go with live rock rubble to keep it submerged.
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Eric
2 green chromis
2 false perc/tr
Indigo Dotty/tr
2 button polyp
gsp
candy cane
zoa
ricordia rock
open brain
5 turbos
5 hermits
30 lb ls / 27lb lr
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