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View Full Version : How to maintain rock solid ph without refugium?


xenon
10/12/2008, 11:02 PM
I use kalk in my auto-top-off so ph peaks at 8.5 during the day and drops to 8.1 at night.

A very common technique is to use a refugium on a reverse light schedule to maintain ph levels but I am unable to set one up so what are the alternatives?