Yes on both, auto top off and gravity is anywhere form 23 to 25 but never fluctuating.
The stars have died when salinity has been stable.
The stars have died when salinity has been stable.
Nitrates are definitely an issue, but i was reading about Linckia last night and they need specific gravity to be at 1.025 and very stable. What's your SG at and do you have an auto-top off?