Copper in my plant fertilizer! Help please! - The Planted Tank Forum
 
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post #1 of 9 (permalink) Old 06-14-2004, 06:55 AM Thread Starter
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Copper in my plant fertilizer! Help please!

Hello,

I have a 125 g. planted tank and I was wondering what kinda plant fertilizer should I use to nourish my plants that does not contain copper. I'm using Kent's Iron & Potassium and Seachem's Flourish plant supplement at the moment. Right now I'm using less then half or the recommended dose twice a week cause I'm afraid the copper will kill my shrimp. But I also donít want my plants to suffer from nutrient deficiency. The shrimp bug bit me hard!!! I never intended to dedicate my 125 g. tank to shrimp, I started off by getting 18 amanos and 20 ghost shrimps to help me combat algae in my tank cause the oto's and siamensis were having a hard time keeping the algae on check. In only 2 weeks the amanos cleaned house of all visible algae except the algae that grows on the plexi tank, but the otos keep that algae down to a minimum. I know that ghost shrimps are not much for keeping algae on check but I found that the ghosts are not shy at all and they help my amanos lose their shyness in only 3 days and getting them to the point that now my amanos will take food right out of my fishes mouths

Before I added my amanos I removed 16 tiger barbs, 8 clown loaches and 8 gold barbs, in order to make the tank safe for the amanos. I became so addicted to shrimps that I started hunting down different types of shrimps in my area. Now I have 26 amanos, 20 tiger shrimps, 20 bumblebees, 20 red cherry shrimps and 6 crystal reds. As for the ghost shrimps.. Well they have been dieing off slowly for some reason. The only fish I have left in the tank are 13 rummynoses, 8 Cardinal tetras, 5 siamensis, 2 kuli loaches and maybe 10-12 otos.

Wow sorry for the long ramble but any suggestions on the best fertilizer that does not contain copper for my plants would be appreciated.

Thanks in advance
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post #2 of 9 (permalink) Old 06-14-2004, 07:09 AM
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post #3 of 9 (permalink) Old 06-14-2004, 01:13 PM
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I could be wrong, but I didn't think the trace amounts of copper found in most ferts would do anything to inverts. " Had-a-snail" contains 1.61% copper, and I still have problems killing pond snails with it. Flourish comprehensive plant supplement has 0.00005% copper. I can't imagine that being very harmful to inverts.

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post #4 of 9 (permalink) Old 06-15-2004, 06:35 AM Thread Starter
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Thank you all for the advise
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post #5 of 9 (permalink) Old 06-15-2004, 08:16 AM
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Sea-Chem Flourish.... copper is listed on the ingredients, although minute.

--cich

Plants are gone, but my 33gal and I are back after a long hiatus.
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post #6 of 9 (permalink) Old 06-16-2004, 01:58 AM
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Copper in Flourish is not a problem. As Jake mentioned the concentrations are too low. I used Flourish in a tank with shrimp over a year before I changed things around and omitted the shrimp from the equation.
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post #7 of 9 (permalink) Old 06-16-2004, 05:46 AM
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so far I have had 0 shrimp casualties with even heavier flourish dosing, but I do worry still as well.

--cich

Plants are gone, but my 33gal and I are back after a long hiatus.
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post #8 of 9 (permalink) Old 06-17-2004, 12:09 PM
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I've been using Tropica Master Grow lately, which has even more copper in it, and still no snail or shrimp problems. Of the people which use plantex ( which contains yet MORE copper), I have spoken to, it doesn't harm their snails or shrimp either.

"Good judgment is the result of experience, experience is the result of bad judgment." --Mark Twain
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post #9 of 9 (permalink) Old 06-17-2004, 12:52 PM
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I use Seachem Flourish and 1 ml per 10 gallons 2x per week on my 75 gallon tank and my shrimp are fine.

Ken
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