Instant Ocean causing KH spike??

[Myka]

What are your other readings the last time you took them before the crash? How long before the crash did you take them? What are they now?

Include as much as you can... temp, pH, salinity, ammonia, nitrite, nitrate, calcium, alkalinity, magnesium, phosphate...

What did you do to the tank in the 24 hours preceding the crash? Include everything, something as simple as stirring up the sand could be the cause.

[Jack]

Ya Myka makes some good points.

Your alkalinity is fine.

If its the Hagen KH test kit they reccomend a lower ppm, around 125 or so and it freaks people out when its higher than that.