Using kelp meal in the substrate - The Planted Tank Forum
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post #1 of 4 (permalink) Old 12-22-2012, 05:57 AM Thread Starter
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Using kelp meal in the substrate

I'm getting ready to make some clay root tabs after the holidays and was thinking about making some with kelp meal and see how they work. I have tried to search for anyone that has used kelp meal either as a soil amendment in mts or made root tabs with it, but there wasn't a whole lot of info out there. Kelp meal has around 60 minerals, 21 amino acids and 12 vitamins. Kelp also provides sources of nitrogen and potassium, micro-nutrients, carbohydrates and essential plant hormones.

Livestock farmers and pet owners use it to supplement animal feed. I actually found that according to, a product market, adding a small percentage to food promotes growth and saves protein. Use 1 percent to 3 percent for shrimp, freshwater fish, crab, eels and soft-shelled turtles. Add 1 percent to 6 percent to dog and cat foods.

What would ones concern be using a product like this as a soil amendment in mts or making root tabs?

I'm curious to anyones thoughts on this or anyone that has used this?

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post #2 of 4 (permalink) Old 12-22-2012, 07:02 AM
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It might make a decent additive.. but dirt and fish waste might be simpler in the end.
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post #3 of 4 (permalink) Old 12-22-2012, 10:42 AM
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i wouldnt have the slightest clue how it would turn out, but im interested in your results if you try it.
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post #4 of 4 (permalink) Old 12-22-2012, 01:24 PM
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As a direct soil additive, I would think it might release into the water column very fast, giving you a blast of nutrients. In clay balls It should work.

Might also be a good water column fert idea. I occasionally use Dr. Earth Seaweed Concentrate. It's a terrestrial plant fert which I believe is the same Kelp meal?

Do consider a thread on this as it will be a good contribution to the hobby. I've also found it hard to find info on organic methods for our tanks for my own experiments in dirt.
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