NFI
but Matt Chilli is going like a champ
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| Silver Perch and Trout Zinc Toxicity Levels http://byap.backyardmagazines.com/forum/viewtopic.php?f=29&t=21644 |
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| Author: | mattyoga [ May 7th, '14, 21:39 ] |
| Post subject: | Silver Perch and Trout Zinc Toxicity Levels |
Had my raintank water tested recently, it has 0.15 mg/L of zinc. Does anyone know what levels are toxic to silver perch and trout at a ph of 6? (Assuming fairly soft water) |
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| Author: | seamonkey [ May 7th, '14, 21:44 ] |
| Post subject: | Re: Silver Perch and Trout Zinc Toxicity Levels |
NFI but Matt Chilli is going like a champ
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| Author: | Troutman [ May 8th, '14, 07:42 ] |
| Post subject: | Re: Silver Perch and Trout Zinc Toxicity Levels |
Trout fry - 0.04, Silver Perch - 0.05 mg/L Water temperature, pH and presence of other ions will have some influence though. |
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| Author: | Gunagulla [ May 8th, '14, 08:14 ] |
| Post subject: | Re: Silver Perch and Trout Zinc Toxicity Levels |
Depends on how old the trout are, but this is interesting- esp the bit about lethal temp being 27-29C ... which would mean I could have kept my trout over summer. http://www.publish.csiro.au/?paper=MF9520142 |
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| Author: | mattyoga [ May 8th, '14, 12:09 ] |
| Post subject: | Re: Silver Perch and Trout Zinc Toxicity Levels |
Thanks Gav - guess I won't be using my rainwater for top ups then - seems too risky given that it may be 3 times the toxicity level! Wonder if there are any cheap ways to remove/bind the zinc to a non toxic form. |
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