Clay balls - The Planted Tank Forum
 
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post #1 of 3 (permalink) Old 07-04-2006, 05:13 AM Thread Starter
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Clay balls

Are the clay balls used for hydroponics the same thing some people use for heavy root feeders like Amazon swords? The guy at the store said they would float- but perhaps the substrate will hold them down?
thanks!

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post #2 of 3 (permalink) Old 07-04-2006, 08:40 PM
Are these real?
 
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No, the clay balls used for hydroponics are fired clay, very hard and inert, and some do float due to their porosity.

Clay balls used to enrich substrate might be baked a little to prevent them from dissolving too quickly. They might contain fertilizer, to be released slowly in the vincinity of roots.

I think "clay balls" go back to the time when laterite was used to enrich gravel. Nowadays, water column fertilization has replaced most of the need for laterite, and there are substrates with a much better nutrient exchange capacity compared to plain gravel.

If you are looking for a CHEAP way to help rosette plants, search for Jobes on this forum and you should get a lot of opinions and a few solutions.


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post #3 of 3 (permalink) Old 07-04-2006, 11:39 PM Thread Starter
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Thanks a lot, and to think I almost bought some.
Thanks!

"An idea does not gain truth as it gains followers"-Amanda Bloom

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Other tanks: HRP's, unknown shrimp, cherry shrimp, endler's, brigs, ramshorns, swordtails
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