Magnesium levels

[Raiderwig]

Hello all....

Quick question, Just did my water testing last night on my 45 gl tank(reef)
and all was pretty good except my Mg levels were high at 1800ppm.

Now I think this is due to me over-dosing with Mag supplement the last couple of weeks in order to raise my Mg levels...( They were low) In turn I was having problems keeping my Calcium levels up to par.
Calcium levels are fine now.( 420-430 )

So i just wanted to know if the High Mg levels are any cause for concern? or just leave them alone for now.... I was thinking that they will come down overtime with my water changes?
Thx

[bertoni]

I don't know of any data on magnesium toxicity that's relevant. I'd do some water changes to bring the level down, but that might not be necessary.

[Raiderwig]

Originally Posted by bertoni

I don't know of any data on magnesium toxicity that's relevant. I'd do some water changes to bring the level down, but that might not be necessary.

I agree with just doing some water changes. I haven't noticed any negative effects in the tank as of yet, so hopefully all is well.
thx