Magnesium...

[Airborneguy]

I'm having a hell of a time getting my magnesium to rise any significant amount. I've added about 7 shot glasses of Epsolm salts, and it is only at 1200. The DKH is a little high, maybe that is affecting it? Calcium was dead on last test at 450.

Any suggestions? I added 3 more shots after completing the test and will probably test again tomorrow.

 

[Lorna]

Actually 3 shot glasses isn't much it takes quite a bit of epsom salts to raise it any...... here is a great calculator....

Reef Chemistry Calculator

 

[dendro982]

In 75g? It takes a lot of Mg additives to raise Mg to the optimal level.

I'm using 6 teaspoons of Reef Advantage Magnesium (practically, the same Mg sulphate plus KCl to balance added SO4 ions by Cl ions) for each 5g of newly prepared (for water changes) Instant Ocean.

 

[Lorna]

Well in most cases frequent and dilligent water changes should maintain your mg levels where they should be. I use a 2part system for ca and dkh and every 8 weeks I add 2 cups of epsom salts diluted in 20oz of water. This maintains my mg level where I like it. at about 3 to 4 times my ca level. I have used this regimen for about 2.5 years without any problems.

 

[Airborneguy]

I'm going to switch salt mix once this one runs out... my levels of everything with it are very low. I'm using the Petco brand right now.

 

[Lorna]

hmmm I use Tropic Marin Reef Pro, it is expensive and I don't know really if the added expense is worth it. Reef Chrystals is probably just as good and much cheaper

 

[Lotus]

I guess everyone has their favorite salt. I just get the Red Sea one because that's what my LFS sells. It's good on calcium and mag, but a little low on alk.

 

[Joe Fish]

I have always used reef crystals and I have no complaints with it. Some times you might be a little salt that won't dissolve, but that's it.