i bet that the problem was your alk being to low. get a mag test kit asap. i don't know how you can be keeping sps without one. When keeping sps i think you have to have the most test kits like
Alk
ph (unless you have a probe)
Calcium
Phos
Mag
Nitrate
potassium
There a must for me.
Alk
ph (unless you have a probe)
Calcium
Phos
Mag
Nitrate
potassium
There a must for me.