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uriah
Mon, 10th Aug 2009, 04:38 PM
Just curious, what are some side effects of high MG levels? (+1500mg/l)
uriah
Mon, 10th Aug 2009, 05:01 PM
Sorry, I meant ppm not mg/l.
uriah
Mon, 10th Aug 2009, 10:02 PM
I guess nobody knows... :innocent2:
JoshOdphi
Mon, 10th Aug 2009, 10:41 PM
no clue...lol...
uriah
Mon, 10th Aug 2009, 10:50 PM
The only thing that I have been able to read is that the KH tends to be reduced at an accelerated rate, but nothing else. To be completely honest, I dont have a magnesium test and dose intermittenly as my CA/ KH levels start to sway. I know that MG doesnt need to be dosed often and I really should just buy a test, but just wanted to get a concensus on what high MG levels can lead to...
JoshOdphi
Mon, 10th Aug 2009, 11:43 PM
yea know wut u mean....i dont have a test either....n have never used on actually....my tanks been set up for a good while...never had a problem....
CoryDude
Tue, 11th Aug 2009, 12:05 AM
I'm running almost 2000 meq/L on a tank right now. It's for bryopsis removal.

Ph has lowered a bit to 7.8-7.9 night/day. dkh has also lowered from 8 to 6. Not sure in Ca, but I am still getting corraline algea on the glass. Tank is fairly empty except green bta and host occ. clown, yellow polyps, open brain, a few mushroom corals.

The only casualty (so far) has been a cleaner shrimp and that could have been because of high nitrate levels.

I'm pretty sure a fully stocked tank may lose a few corals with these high mg levels due to the alk and ph drops. But, you could probably use buffers to counteract this. Don't know, I'm not dosing anything on my tank right now other than kents mg.
uriah
Tue, 11th Aug 2009, 12:19 AM
I have some ph buffer and actively dose CA and KH. I guess high MG doesnt really have a significant negative effect; as long as I can keep my other levels in check... (actually dont even know if my MG levels are high, but theoretically speaking)
JoshOdphi
Tue, 11th Aug 2009, 09:55 AM
yup...i keep ph buffer as well...and use kent part a and part b supplements in my 37 reef...so far so good...growth is great...my nitrates have never been zero but like i said have never had a problem wutsoever
CoryDude
Tue, 11th Aug 2009, 01:53 PM
Good to know a buffer will work against the low alk. in this situation.