So I decided to look up the ingredients just now as I've never done it, looks like bayer is BAAAAAAD stuff for coral dip. I would bet there's more effects, we just don't know about them yet.
Aquatic life[edit]
Imidacloprid is highly toxic on an
acute basis to aquatic
invertebrates, with
EC50 values = 0.037 - 0.115 ppm. It is also highly toxic to aquatic invertebrates on a
chronic basis (effects on growth and movement):
NOAEC/
LOAEC = 1.8/3.6 ppm in
daphnids; NOAEC = 0.001 in
Chironomus midge, and NOAEC/LOAEC = 0.00006/0.0013 ppm in
mysid shrimp. Its toxicity to fish is relatively low; however, the EPA has requested review of secondary effects on fish with
food chains that include sensitive aquatic invertebrates.
[13]
https://en.wikipedia.org/wiki/Imidacloprid
The research, published in the peer-reviewed
journal PLOS One, found that 70% less invertebrate species were found in water polluted with the insecticide compared to clean water. There were also far fewer individuals of each species in the polluted water. "This is the first study to show this happens in the field," van der Sluijs said. As well as killing mayflies, midges, and molluscs, the pollution could have a knock-on effect on birds such as swallows that rely on flying
insects for food, he added.
http://www.desdemonadespair.net/2013/05/worlds-most-widely-used-insecticide-is.html
Like most pyrethroids, it is highly toxic to fish, invertebrates, and insects, but it is far less toxic to humans.
https://en.wikipedia.org/wiki/Cyfluthrin
Aquatic Ecotoxicity
All Toxic Effects for Organism Group
Organism Group Effects Noted
Amphibians Development, Growth, Immunological, Mortality
Annelida Population
Crustaceans Mortality
Fish Behavior, Biochemistry, Cell(s), Growth, Hormone(s), Mortality, Population
Insects Development, Intoxication, Mortality, Population
Molluscs Intoxication, Mortality, Population
NematodesandFlatworms Population
Phytoplankton Biochemistry, Population
Zooplankton Accumulation, Intoxication, Mortality, Population
~ Un-Assigned Development, Mortality, Population
View All Aquatic Ecotoxicity Studies and References
Summary of Acute Toxicity for Organism Group
Organism Group Average Acute Toxicity Acute Toxicity Range Crustaceans Very Highly Toxic Very Highly Toxic
Fish Very Highly Toxic Very Highly Toxic
Insects Very Highly Toxic Very Highly Toxic
Molluscs Slightly Toxic Not Acutely Toxic to Slightly Toxic
Zooplankton Very Highly Toxic Very Highly Toxic
~ Un-Assigned Very Highly Toxic Very Highly Toxic
http://www.pesticideinfo.org/Detail_Chemical.jsp?Rec_Id=PC33504