Does Flourish Excel harm shrimp? - The Planted Tank Forum
 
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post #1 of 8 (permalink) Old 02-13-2008, 03:04 PM Thread Starter
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Does Flourish Excel harm shrimp?

I have been told that Flourish Excel can harm shrimp. I'd really like to use Excel in my 20L tank, but I have 6 Yamato "Amano" Shrimp (Caridina japonica).

I did one dose of Excel which didn't seem to hurt them, but I'm rather scared of using Excel consistently like I need.

Does anyone know if Excel can hurt my Amano Shrimp?

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post #2 of 8 (permalink) Old 02-13-2008, 04:47 PM
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i got cherry's in my 55 gallon,
and then i got a 21 gallon shrimp tank and i've dosed excell in both of them, i had a beard algae problem on the 55 gallon and OVERDOSED excell to fight it, and the shimp were not affected by it. It does have copper in it, but such a small amount it dosnt matter.

So on my cherrys' they were not affected
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post #3 of 8 (permalink) Old 02-13-2008, 04:52 PM
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Flourish Excel has copper in it? You mean Flourish Comprehensive, don't you?
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post #4 of 8 (permalink) Old 02-13-2008, 05:48 PM Thread Starter
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The only thing in Excel is something called polycycloglutaracetal. I have no idea what that really is, but there is no mention of copper on the bottle.

Comprehensive does contain Copper at the rate of 0.00001% which I agree is so little, it shouldn't hurt anything.

Okay, then I'll chalk up the "Excel hurts shrimp" as untrue. Thanks!

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post #5 of 8 (permalink) Old 02-13-2008, 05:49 PM
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I dose fluorish excel in my 5 gallon low tech tank daily. The tank has 2 Amano Shrimp, 1 otocat, and 2 Dwarf Aquatic Frogs in it. They have not been harmed by the dosing and the Amano Shrimp have even doubled in size.

To the best of my knowledge Fluorish Excel does not contain copper. Like Indiboi said Fluorish Comprehensive does. They are two different products.
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post #6 of 8 (permalink) Old 02-13-2008, 08:24 PM
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my CRS (crystal red shrimp) did not like it at all. Had a VERY BAD experience with it considering CRS. Thankfully I had babies that I kept healthy.

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I raise my sword in the air in the battle against clado. I have been beaten in this battle but the war is not over. As my wounds heal I amass another army, an army with many legs, an army of Amano's......

I thrust my tridant into the mass of medusa like staghorn. I am wounded but I refuse to take a knee.
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post #7 of 8 (permalink) Old 02-13-2008, 08:30 PM
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Yea sorry guys i must have been thinking abour flourish traces as containing copper
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post #8 of 8 (permalink) Old 02-16-2008, 12:30 PM
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I dose it infrequently in my 10g black diamond (and now yellows as well ) tank at the double dose.

Haven't been able to trace it to any deaths yet.

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