how to raise magnesium
 

i think thats what i need for my coraline alge to grow. Unless someone knows how to raise calcium level up, but i don't have a calcium reactor and i don't even know what it does. the easiet soloutioin Please.

well, the first thing you need to do is some testing to determine where your levels are. You will quickly learn that you never want to add something if you don't know where the current level is. Most things interact with each other in some way and if you add one, another might drop or rise as well.

Once you have done your testing, let us know on here where the levels are and we'll give you some advice. Often people use Purple Up in order to increase their coraline algae growth. Just don't add it without knowing where you currently are.

Hope that helps.

I've just bought in bulk from littlesilvermax (here). For amounts use this calculator by Jdeieck.

Are you testing for Mg and Ca?

10% weekly water changes with a good salt will contribute to coraline and overall tank well being.

As Mark suggested, littlesilvermax will be your most cost effective way to increase your levels. It's best to determine where you are at first though. Here is a good link on how to mix your supplements.

http://www.reefkeeping.com/issues/2006-02/rhf/index.php

Heres the "Do-It-Yourself Magnesium Supplements for the Reef Aquarium" article that goes hand in hand with the article that xtreme posted.

http://www.reefkeeping.com/issues/2006-07/rhf/index.php

other nice thing about littlesilvermax's Mg it was already a MagFlake/Epson salt blend

I've just started using Tailored Aquatics Calcium Plus and Reef Magnesium. The Calcium Plus contains calcium, magnesium, and strontium (in a tiny amount), along with organic carbon... not ideal for my setup (skimmerless) but it will have to do... I like that the Tailored Aquatics products are made in Canada :lol:

Anyhow, it sounds like you need to do some reading on the relationship between Calcium, alkalinity, and Magnesium... http://www.reefkeeping.com/issues/2006-06/rhf/index.php This should get you started. Next will be test kits... as a few people have already stated, dosing without testing is dangerous... you don't want to lose a tank of expensive fishes or corals to an overdose.

I use 2little fishs c-ballance and once you get your amount set it is brainless

If you want coraline algae next time I scrape my glass I'll gladly send you some.:razz:
Lots of good advise.
Im my experience coraline will grow eventually just be patient.