by GUTCHUCKER » Wed Feb 09, 2011 4:02 am
Well, you get high and low concentration ponds or tanks. They all have their own benefits - low concentration is easier to manage, less likely to go wrong, needs fewer employees to manage and you lose less if the shit hits the fan. High concentration means it's more expensive and risky but you get more out of it. Different types of fish can be happy with different concentrations at different ages: you find out how many litres of water it takes to support an individual fish and go from there. You test the water daily or weekly (it depends on stuff) and
You avoid contaminants by choosing the setting for your pond and managing pests. If there's fertiliser or pesticide or LITHIUM runoff into your fish pond, you are a dumbass and deserve to lose all of your fish and money.
O hai wikipedia, "Astaxanthin is a potent antioxidant that stimulates the development of healthy fish nervous systems and enhances the fish's fertility and growth rate. Research has revealed canthaxanthin may have negative effects on the human eye, accumulating in the retina at high levels of consumption."
But then another article: "Currently, the primary use for humans is as a food supplement. Research shows that due to astaxanthin's potent antioxidant activity, it may be beneficial in cardiovascular, immune, inflammatory and neurodegenerative diseases.[25] Some research has suggested potential as an anti-cancer agent.[26] Research supports the assumption that it protects body tissues from oxidative damage."
I haven't checked the sources for those two, but:
http://www.fda.gov/ForIndustry/ColorAdd ... 115641.htm:
"1.The color additives Astaxanthin, Astaxanthin dimethyldisuccinate, Ultramarine blue, Canthaxanthin, Haematococcus algae meal, Synthetic iron oxide, Dried algae meal, Tagetes (Aztec marigold) meal and extract, Corn endosperm oil, Paracoccus pigment, and Phaffia yeast are approved for specific uses in animal food"
Soooo probably not a problem then
Well, you get high and low concentration ponds or tanks. They all have their own benefits - low concentration is easier to manage, less likely to go wrong, needs fewer employees to manage and you lose less if the shit hits the fan. High concentration means it's more expensive and risky but you get more out of it. Different types of fish can be happy with different concentrations at different ages: you find out how many litres of water it takes to support an individual fish and go from there. You test the water daily or weekly (it depends on stuff) and
You avoid contaminants by choosing the setting for your pond and managing pests. If there's fertiliser or pesticide or LITHIUM runoff into your fish pond, you are a dumbass and deserve to lose all of your fish and money.
O hai wikipedia, "Astaxanthin is a potent antioxidant that stimulates the development of healthy fish nervous systems and enhances the fish's fertility and growth rate. Research has revealed canthaxanthin may have negative effects on the human eye, accumulating in the retina at high levels of consumption."
But then another article: "Currently, the primary use for humans is as a food supplement. Research shows that due to astaxanthin's potent antioxidant activity, it may be beneficial in cardiovascular, immune, inflammatory and neurodegenerative diseases.[25] Some research has suggested potential as an anti-cancer agent.[26] Research supports the assumption that it protects body tissues from oxidative damage."
I haven't checked the sources for those two, but:
http://www.fda.gov/ForIndustry/ColorAdditives/ColorAdditiveInventories/ucm115641.htm:
"1.The color additives Astaxanthin, Astaxanthin dimethyldisuccinate, Ultramarine blue, Canthaxanthin, Haematococcus algae meal, Synthetic iron oxide, Dried algae meal, Tagetes (Aztec marigold) meal and extract, Corn endosperm oil, Paracoccus pigment, and Phaffia yeast are approved for specific uses in animal food"
Soooo probably not a problem then