Question about these fert tabs. - The Planted Tank Forum
 
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post #1 of 5 (permalink) Old 12-28-2009, 01:59 AM Thread Starter
CL
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Arrow Question about these fert tabs.

Well, my Walmart won't carry any plants supplies until spring, so I went to Lowes across the street. They didn't have any Jobe's fertilizer tabs, so I got some Miracle Gro ones. On the packages they say that they contain 0.05% chelated copper. Would this be a problem for any shrimp that I might stock in the future?

-Chris

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post #2 of 5 (permalink) Old 12-28-2009, 03:10 PM
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Quote:
Originally Posted by CL View Post
Well, my Walmart won't carry any plants supplies until spring, so I went to Lowes across the street. They didn't have any Jobe's fertilizer tabs, so I got some Miracle Gro ones. On the packages they say that they contain 0.05% chelated copper. Would this be a problem for any shrimp that I might stock in the future?
I think it might be and if it was me I would not use them.


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post #3 of 5 (permalink) Old 12-28-2009, 03:33 PM
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According to the EPA the average tap water has 0.6ppm copper. I don't see how a fertilizer spike that's 0.05% copper is going to accumulate a water level anything near 0.6ppm. I wouldn't encourage the shrimp to eat the plant spike though.

The Plantex CSM fertilizer sold at AquariumFertilizer.com is 0.1% copper, that's double the amount you're looking at, and it's supposed to be dissolved straight into the water column. ---> http://www.aquariumfertilizer.com/in...ShowItemStart=
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post #4 of 5 (permalink) Old 12-28-2009, 05:27 PM Thread Starter
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According to the EPA the average tap water has 0.6ppm copper. I don't see how a fertilizer spike that's 0.05% copper is going to accumulate a water level anything near 0.6ppm. I wouldn't encourage the shrimp to eat the plant spike though.

The Plantex CSM fertilizer sold at AquariumFertilizer.com is 0.1% copper, that's double the amount you're looking at, and it's supposed to be dissolved straight into the water column. ---> http://www.aquariumfertilizer.com/in...ShowItemStart=
Thanks! I'll definitely use them then. I had no idea that the Plantex is 0.1% copper.

-Chris

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post #5 of 5 (permalink) Old 12-28-2009, 05:35 PM
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I still use Seachem tabs. My 90 only needs 2-3 packages a year so it's really a non-issue.

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