Adding nutrients to an existing sediment, the simple way - Page 2 - The Planted Tank Forum
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post #16 of 66 (permalink) Old 05-27-2010, 06:10 PM Thread Starter
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Originally Posted by speedie408 View Post
Other than this method, how are we suppose to make ice cubes small enuff (the size of gel caps would be best in my case)?

I got my osmocote from OSH in the gardening section.
Small?

They sell all sorts of sizes of ice cube trays.
The larger nuggets above are typical ice cube sizes.
So you pour the osmocoat in, add water, freeze.

If you just want a tiny amount and want to add lots of small packets, then get small ice cube trays. Or just pour the fert in straight and push each little ball deep into the sediment. Gel caps work.......but filling lots of them for larger tanks is a PITA.

You can also add peat, soil, clays, worm castings etc etc.........to fertcicles. Bit tough to do this for fert caps trying to pack this type of stuff into those little caps.

http://www.google.com/imgres?imgurl=...26tbs%3Disch:1



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Tom Barr




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post #17 of 66 (permalink) Old 05-27-2010, 06:27 PM
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Fertcicles, thats clever Tom Definitely like this idea, you can run to any garden store and find these at any time.
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post #18 of 66 (permalink) Old 05-27-2010, 06:58 PM
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For smaller ice, just don't fill the tray as much.
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post #19 of 66 (permalink) Old 05-27-2010, 07:26 PM
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Half full, or half empty? HAHAHA!
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post #20 of 66 (permalink) Old 05-27-2010, 07:41 PM Thread Starter
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Quote:
Originally Posted by dirtyhermit View Post
For smaller ice, just don't fill the tray as much.
Oh heck, that's too hard
I "wanna do things the harder way".

The nice thing is you can DIY any concoction for sediment ferts you wish, soils, clays, loams, mulm, peat, osmocoat, whatever.........ADA AS also works in lieu of clay(well, it is clay) and you can pack it full of osmocoat also.

Not a bad idea for water column folks who leave for vacation for a few days.

I still like a full rich sediment bed of ADA AS or Worm castings, clay hydric soils....but if you need spot or add to existing sediments, this a good cheap simple method to DIY.

This also can help identify problems with sediment only dosing methods also(but water column + sediment dosing works best) since you can spot treat problem areas, plants with specific nutrients etc.

Over time, most sediments decline in N in planted tanks(9 to 18 months??), much less for the other nutrients though. Fish can supply some N also, but some plants demand more than others for nutrients(and CO2 for that matter).

This is simple tool to see if it's a nutrient issue.


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post #21 of 66 (permalink) Old 05-27-2010, 07:46 PM
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Found me some mini ice cube trays on Amazon.


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post #22 of 66 (permalink) Old 05-27-2010, 10:58 PM
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Quote:
Originally Posted by plantbrain View Post
Osmocoat:

http://osmocoteisbest.com/

Been around 40 years.

You can use gel caps if you want, but adding a fair amount is much easier with ice. You can also add clays, soils, worm castings, whatever amendments you chose to existing sediments.

When the ice melts, it's deep in place.
I do not like filling little gel caps, too clumsy.


Regards,
Tom Barr
OK, they have, like, several different products ... I understand that we are using them out of application. But, which one of them works best (generally speaking) for the average aquarium keeper?

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Wes

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post #23 of 66 (permalink) Old 05-28-2010, 12:16 AM
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I dont think you can go wrong with any of them. They have slow release formulas in Micro and Macro. You could use any of them as you see fit.
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post #24 of 66 (permalink) Old 05-28-2010, 12:31 AM
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Just wait to see if someone entrepreneurial enough decides to sell them in blister packs like how you get frozen blood worm.

"freeze, insert, enjoy! Fertcicles"
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post #25 of 66 (permalink) Old 05-28-2010, 12:44 AM
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Just keep the fertcicles away from your kids
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post #26 of 66 (permalink) Old 05-28-2010, 12:48 AM Thread Starter
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There's already several that do the gel caps and several places already mix osmocoat or something pretty close like it in there.

Like mixing dry ferts into water and using it, this is the same, frozen product shipment is costly and not worth while.

That's the nice thing about this, no profit, only just a simple good idea that anyone can do/use. Well, if you have a freezer, but most do that own aquariums.

It also can be applied in any shape/size/density/materials unlike gel caps etc. I cannot see folks packing mud into 100 gel caps Osmocoat? Sure, why not, but this is a simple alternative.

Orlando,
Do those sticky rice crispy things fall apart in water or do they stay stuck together for 1-2 minutes etc?

Regards,
Tom Barr




Regards,
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post #27 of 66 (permalink) Old 05-28-2010, 12:57 AM
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I never pulled them out so maybe I should dig around and see. Thats a good question though, now Im curious to know. Hopefully it wont bite me in the rear trying to find out. I will get right back to you in this thread.
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post #28 of 66 (permalink) Old 05-28-2010, 01:19 AM
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Put the Osmocote into regular sized ice cube trays, but only a few balls in each cube. Then do not put very much water in there. Voila! Small doses, and pretty close to flat, too! Fits under shallow substrate.

For quantity/spacing, I think this will vary with the sort of plants you are growing, but how about 1 full sized ice cube per 6"-8" each way? (1 full ice cube might hold a dozen Osmocote balls)
If you make 1/4 cubes (3-4 Osmocote balls), then perhaps closer, like 3" each way.
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post #29 of 66 (permalink) Old 05-28-2010, 04:58 AM
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Just stumbled into this thread. What an awesome idea for the planted tank. This is nothing new... I remember my mom doing this for her orchids, and garden. I wondered why the heck she would freeze ferts and have me shove the ice cubes into the soil.
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post #30 of 66 (permalink) Old 05-29-2010, 02:42 AM
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Good idea, too about reusing frozen food trays for this. Mini ice cubes, AND you are reusing something that would otherwise have been tossed after just the one use.

I suppose for pond use you could freeze muffin pan size ferticicles.
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