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I'm having an issue where magnesium continues to go up over a period of time.
It was reading at around 1700 during November 2019 and I did a 90% water change to bring it back down to 1490. My corals were doing awful at the 1700 marker, especially LPS corals, and afterwards they started to recover.
I checked Magnesium once again 1/8/20 and it was now at 1550. Today it's slowly climbed back up to 1680 and the corals are looking awful again. I'm using ESV two part for alkalinity and calcium but I'm not dosing for magnesium. My tank consumes about 1.2 dkh over a period of 7 days. Calcium is much slower. I would expect magnesium to drop very slowly as well but its actually going up.
Alk is currenly sitting at 7.90 dkh
Calcium is currently sitting at 440
These Mag tests were done on saliferts and redsea test kits which aren't expected to be expired till about 2022. Both are reading about +/- 5 of each other.
I've done no water changes since that 90% water change.
I've checked my TDS meter on my 4 stage RO/DI unit and its reading 0.
If anyone else has any ideas on where magnesium is coming from or I'm totally missing something, let me know. I'd like to fix it and avoid any more water changes.
I'm not a big fan of water changes because I'm a small guy. I mean a 5 gallon bucket of water is almost 40% of my body weight. lol. Also this tank is 144 miles from the closest LFS so I can't get anyone out here either to do it for me.
It was reading at around 1700 during November 2019 and I did a 90% water change to bring it back down to 1490. My corals were doing awful at the 1700 marker, especially LPS corals, and afterwards they started to recover.
I checked Magnesium once again 1/8/20 and it was now at 1550. Today it's slowly climbed back up to 1680 and the corals are looking awful again. I'm using ESV two part for alkalinity and calcium but I'm not dosing for magnesium. My tank consumes about 1.2 dkh over a period of 7 days. Calcium is much slower. I would expect magnesium to drop very slowly as well but its actually going up.
Alk is currenly sitting at 7.90 dkh
Calcium is currently sitting at 440
These Mag tests were done on saliferts and redsea test kits which aren't expected to be expired till about 2022. Both are reading about +/- 5 of each other.
I've done no water changes since that 90% water change.
I've checked my TDS meter on my 4 stage RO/DI unit and its reading 0.
If anyone else has any ideas on where magnesium is coming from or I'm totally missing something, let me know. I'd like to fix it and avoid any more water changes.
I'm not a big fan of water changes because I'm a small guy. I mean a 5 gallon bucket of water is almost 40% of my body weight. lol. Also this tank is 144 miles from the closest LFS so I can't get anyone out here either to do it for me.