"poor mans dupla drops" - The Planted Tank Forum
 
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post #1 of 3 (permalink) Old 07-18-2011, 08:16 PM Thread Starter
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"poor mans dupla drops"

Have heard of hydroponics stores carrying ingredients for making aquarium plant fertilizer at home. Supposed to be "dirt cheap" compared to any you get online. So, have decided to "take the plunge" and go by the local store and pick up the stuff and test it.

In case anyone is interested, here's the recipe:

2 Teaspoons potassium sulfate
1 Teaspoon potassium nitrate
2.5 Tablespoons hydrated magnesium sulfate
1 Tablespoon chelated trace elements mix

Mix ingredients in 1.5 cups of distilled water and store in the refrigerator after use.

My research says the dosage varies depending on how heavily the tank is planted and the size of the tank. Start with a few drops per 10 gallons of tank water. My plan is to mix a few drops in a pitcher of my water change water I keep in a bucket when I need to top off my tanks. Am interested to see how this works.

Apparently, the mixture works best in moderately to heavily planted tanks. ALWAYS RESEARCH BEFORE USE.

B

"Fear not my child, just change the tank water."
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post #2 of 3 (permalink) Old 07-18-2011, 08:30 PM
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As you can see in your formula there is no PO4. PMDD came about when the thinking was that PO4 causes algae but after a while people finally figured out PO4 was needed by the plants so you might consider adding it to your mix. Here's a link with more info on PMDD.

http://www.theplantedtank.co.uk/PMDD.htm
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post #3 of 3 (permalink) Old 07-19-2011, 01:11 AM
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By far the better method is to read the sticky in this forum on dosing schemes, and follow that method - same chemicals, but much better dosing technique.

Hoppy
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