Should I fertilize after trimming? - The Planted Tank Forum
 
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post #1 of 3 (permalink) Old 07-01-2011, 06:11 PM Thread Starter
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Should I fertilize after trimming?

I have wondered, should I fertilize regularly after trimming, or stop for a bit, or even slightly increase dosing to get fast growth?

The reason I ask is because I do not want an algae outbreak. My aquarium is high lighting and filled with plants, I have noticed that staghorn algae tends to appear soon after a major trim.

Anyone want to chime in?

What are your suggestions? Stay on the regular schedule? Increase dosage? Decrease dosage?
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post #2 of 3 (permalink) Old 07-01-2011, 09:09 PM
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I don't think it matters as plants grow larger so does the root system to store and/or reach farther for nutrients, so when you trim a plant there are less leaves that need nutrients but the root system remains the same size, so the response when trimming mature plants is a spurt of rapid growth after they get through the initial shock of the trimming. With terestial plants fertilizer are not to be applied either 2 days before or after the trimming, but I think with aquatic plants it may be better to stay on your schedule unless the plants are slow to recover from trimming in the first place. Plus you are not trimming every plant in the tank and with some plants like swords you may just be removing the older outer leaves of the plant.


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post #3 of 3 (permalink) Old 07-02-2011, 05:23 AM Thread Starter
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Thanks. I figured it would probably be best to just stay on my regular schedule. Like you said not every plant is going to be trimmed. Mainly I have to trim my myaca and brazil pennywort the most often....and occasionally the HC. But my giant hairgrass, vals, mosses and java ferns rarely need trimmed.
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