Do Osmocote Plus pellets degrade? - The Planted Tank Forum
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post #1 of 7 (permalink) Old 08-22-2016, 04:12 AM Thread Starter
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Do Osmocote Plus pellets degrade?



Some reason I thought they broke down , 100%, completely, and you removed them via water changes. If the picture is correct, seems the pellet is a shell, and the N P K nutrients are inside... so what do you guys do about this? Will my substrate eventually be filled with yellow and orange balls? Or are they supposed to break down?
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post #2 of 7 (permalink) Old 08-22-2016, 04:26 AM
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Nope, they stay in the substrate and you will need to manually pick them out whenever you see them

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post #3 of 7 (permalink) Old 08-22-2016, 04:34 AM Thread Starter
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Originally Posted by huhu89151734 View Post
Nope, they stay in the substrate and you will need to manually pick them out whenever you see them
Aw man. Does a gravel vacuum suck them out?
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post #4 of 7 (permalink) Old 08-22-2016, 04:36 AM
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In my experience, if the substrate gets disturbed, some will float up (I think? now I can't remember if they just sit on the surface of the substrate or actually float, it's been a while). I know the filter sucks some up too. I don't think they're in any way harmful, or that it would hurt a fish to eat one if it tried for some reason, they're just kind-of annoying.

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Aw man. Does a gravel vacuum suck them out?
A gravel vacuum totally works.
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post #5 of 7 (permalink) Old 08-22-2016, 12:58 PM
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They sit on the substrate, never seen them float to the top of the water. They are pretty light, I would think vacuuming might work, but many people with planted tanks have too many plants to get a vacuum in there. I end up picking a dozen or so out every few weeks with long tweezers, then I decide they are a "feature", then I pick a few out a few weeks later. Repeat.

Makes me think of going back to Seachem's tab's.
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post #6 of 7 (permalink) Old 09-07-2016, 11:44 PM
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The shells are pretty light but a typical gravel vac still has a hard time removing them. A hose with no gravel vac tube on it has enough suction to pick them up though. I just re-used a bunch of substrate (oil-dri, which is pretty light weight too) that had a bunch of shells in it but just the bucket rinsing expelled 98% of them.


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post #7 of 7 (permalink) Old 09-08-2016, 07:26 PM
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I removed them with a large turkey baster from 1$ store, easy peazy.

My 90 gallon

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