I currently use Tropic Marin. I used to use Seachem Reef Salt but also found it didn't disolve well and I had to always add buffer to keep the PH up.
My sps seems to be doing very well on TM. I have never used the Instant Ocean Reef Crystals.
Has anyone used both Tropic Marin and Instant Ocean Reef Crystals? Which did you like better?
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