Have you tested your alk with another test kit to compare to the Trident? What is the expiration date on the reagents? I've only had weird calcium readings with the Trident towards the end of the reagent. It usually drifts up and not down for me. You could try to flush the back feed line out...
I got my AquaBiomic test back a while ago. When I upgraded, I used half a bag of Ocean Direct sand and the live rock from my 20-gallon system. I dose Zeobak once a week. The test showed a mature reef.
I will be in Anaheim on Sunday (2/21) in the afternoon. I have a handful of coral available. I live in the High Desert (92307) but can meet off the freeway on my way down or in Anaheim. If you have any questions, please send me a message.
SPS Frags
A1. WWC HeartBreaker SOLD
A.2 WWC...
Welcome back to the hobby. The hobby has come a long way since 2014. The biggest thing I learned coming back to the hobby was 0 Nitrate and 0 Phosphate is not good anymore.