water changes.......

[waverz]

I was doing my weekly wc today and decided to test my clean water. And I realized why I always have problems with Mg. My Reef crystals only tested at 1100ppm at 1.026! What's up with that? Here I have been adding Mg supplement like a mofo only to find out I am taking it out every time I do a water change. I guess I need to add some Mg to my make-up water every time I mix it, anyone else adding other supplements to their make up water? Now that I think about it I wish I would have checked the Ca level as well to make sure I wasn't sucking that out of my tank too.

[Double-J]

Maybe check the mag against another test. Number seems low for RC

[Coralfreak]

I dont add anything to my makeup water, used to but it really is a pain. I run a calcium reactor with Zeomag in it along with the regular media and dose limewater, never have any problems with calcium, alk, Mg etc.

[Coralfreak]

Ive also seen low Mg readings from RC.

[waverz]

I've been thinking about running Zeomag, how low of ph does it need to disolve? I'm already running it in the low 6's because i have huge media. I really wish i would have gotten your Kalk reactor Allen. I've been watching the for sale forums for one.

[Coralfreak]

It has to be pretty low, 6.0 to 6.2.

Keep looking they are around, just have to be in the right place at the right time.

[bgreenlee]

My OC was running really low, 1000 ish, the first bucket of RC I have tested my water at 1200 ish.