- Joined
- May 5, 2014
- Messages
- 498
- Reaction score
- 249
Sg was first thing I checked 1.026.Dry rock always causes maturity probs imo, so sps will not thrive for well over a year.
With the mature marine blocks I would question the prior tank and I've heard of metal leaching. Maybe a triton test would help. Other thing I would check is your sg. Have you checked your refractometer with a sg solution? This gets overlooked often.
I have read and followed the long discussion on this forum and although there is some evidence of al leaching there are countless thriving sps tanks with these blocks. And we do not know what form of al is there and if it truly effects corals. Might effect leathers. But yes i have weighed this.
It is just weird that these corals go from encrusting to unexplained melting.
