Cyanide caught fishes?

[nanomania]

We have some lfs here in india (mumbai/bombay) selling cyanide caught fishes.

I would like to know how to detect wether the fish is cynide caught or no, so i can avoid buying.

Would also like to know how cure them if there are any methods?

 

[Oscar47f]

Its hard to tell right off the bat, they use the cyanide as a sort of sedative to paralyze the fish. They don't use a set dose often so overdoses can be fairly common unfortunately theres usually little you can do about it. But there are certain fish species that are caught with cyanide more than others and going the captive bred route helps to ensure they weren't fished with cyanide. Theres an app that will tell you which species are most prone to it maybe you can look it up as i don't remember exactly what its called.

 

[nanomania]

Its hard to tell right off the bat, they use the cyanide as a sort of sedative to paralyze the fish. They don't use a set dose often so overdoses can be fairly common unfortunately theres usually little you can do about it. But there are certain fish species that are caught with cyanide more than others and going the captive bred route helps to ensure they weren't fished with cyanide. Theres an app that will tell you which species are most prone to it maybe you can look it up as i don't remember exactly what its called.

Oh.. ill try searchin for that app. woukd a normal qt procedure treat the fishes that are cynide caught?

 

[Humblefish]

@nanomania You can test for thiocyanate; look here: http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0035355

Also read this: https://www.hakaimagazine.com/article-short/fishing-cyanide

There is some anecdotal evidence that giving a cyanide caught fish a MB bath can be beneficial if done soon enough: https://www.reef2reef.com/threads/methylene-blue.257467/

 

[nanomania]

@nanomania You can test for thiocyanate; look here: http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0035355

Also read this: https://www.hakaimagazine.com/article-short/fishing-cyanide

There is some anecdotal evidence that giving a cyanide caught fish a MB bath can be beneficial if done soon enough: https://www.reef2reef.com/threads/methylene-blue.257467/

Wow.. thanks for sharing.. but however the methid if detecting needs a lab, as red in the article. But stil thats good to know its possible.

Can i use paraguard for 30mints baths, right before qt? Also as i have got bangais, they are going through the normal qt procedure, so do u recommend doing a mb bath before adding it to dt?

 

[Humblefish]

Can i use paraguard for 30mints baths, right before qt? Also as i have got bangais, they are going through the normal qt procedure, so do u recommend doing a mb bath before adding it to dt?

I'm not really sure what benefits, if any, Paraguard provides.

I would do the MB bath before the fish ever goes into QT.

 

[nanomania]

I'm not really sure what benefits, if any, Paraguard provides.

I would do the MB bath before the fish ever goes into QT.

Howmany gms of MB for 30mints baths? Can i add it during the acclimation? Do i need to do it for my bangais after the qt procedure is over?

 

[Humblefish]

Howmany gms of MB for 30mints baths? Can i add it during the acclimation? Do i need to do it for my bangais after the qt procedure is over?

Which product are you using? I typically dose 5ml (1 teaspoon) of 2.303% solution per 5 gallons for 30 minutes in a bath of aquarium water. You can use during acclimation so long as ammonia is not present (i.e. fish has been in long transit). If your cardinals are looking fine, I would not use it.

 

[nanomania]

Which product are you using? I typically dose 5ml (1 teaspoon) of 2.303% solution per 5 gallons for 30 minutes in a bath of aquarium water. You can use during acclimation so long as ammonia is not present (i.e. fish has been in long transit). If your cardinals are looking fine, I would not use it.

I can arrange for lab grade powdered mb.

 

[Humblefish]

I can arrange for lab grade powdered mb.

I've never used the powder before... so unsure of dosage for that.

 

[nanomania]

I've never used the powder before... so unsure of dosage for that.

Ill try finding a liquid mb

 

[ThunderGoose]

There are some locations where cyanide fishing is not legal (doesn't mean it doesn't happen but it reduces the risk) so if you can find where your fish come from that might help reduce the risk. And remember, even if YOUR fish survives being caught by cyanide there are probably plenty of others that didn't even make it to market.

This is one reason I'm very picky about my fish sources and I pay more for captive bred fish or for fish that I know the origin of (although I will buy second hand fish, too. I figure that's not supporting an unsustainable harvest method). Which means mostly buying on-line or second hand fish from other reefers. My LFS is not interested in checking origins even after I offered to special order the fish and pay extra.

If you're in the States CoralReefTN.com carries fish and inverts that are sustainably harvested. They don't always have as wide a selection as some places but it's working well for me.

 

[nanomania]

There are some locations where cyanide fishing is not legal (doesn't mean it doesn't happen but it reduces the risk) so if you can find where your fish come from that might help reduce the risk. And remember, even if YOUR fish survives being caught by cyanide there are probably plenty of others that didn't even make it to market.

This is one reason I'm very picky about my fish sources and I pay more for captive bred fish or for fish that I know the origin of (although I will buy second hand fish, too. I figure that's not supporting an unsustainable harvest method). Which means mostly buying on-line or second hand fish from other reefers. My LFS is not interested in checking origins even after I offered to special order the fish and pay extra.

If you're in the States CoralReefTN.com carries fish and inverts that are sustainably harvested. They don't always have as wide a selection as some places but it's working well for me.

Yes, i know if i stayed in usa, i would buy only captive bred fishes, from sellers like ora farms etc. But im from india, majority fishes come from philpines, srilanka and maldives. Im unsure which are cynide caught.