Can I replace Cal-Mag with Dolomite Lime?

If the problem is not enough magnesium, then yeah just using epsom salts makes a lot more sense than using a combination of calcium nitrate and magnesium nitrate.

This is exactly why it makes sense to get separate ingredients. The only reason they put them together is because of marketing. People love their "cal-mag".

Calcium nitrate is arguably the main ingredient to all hydroponic recipes, yet the majority of people think it would be a waste to have some laying around.

twistedwords said:

ah....just get some epsom salt and dilute it down and foliar spray it. No need for calcium as there is plenty in your nutes and water. The only reason they put calcium in with magnesium is so the magnesium can bind with the calcium in your mix.

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