Might have to eat my own words re: quarantine

[Myka]

Brad, you probably weren't dosing enough Prime. To give you an idea, I was dosing almost 1 mL per day AmQuel into about 6 gallons holding an adult pair of Darwin clowns. I split the dose into two times per day. Remember AmQuel is twice the concentration of Prime. I like those SeaChem Ammonia Alerts too. They aren't overly accurate as I find the ammonia level is often 10x what the alert says. So if there is even a trace that shows up on the alert I do an extra dose.

I am surprised you killed fish with Formalin. I've never killed a fish with it, and I've used it for the better part of 20 years. Although one has to be very diligent about using a good fine-bubble airstone while dipping the fish. The carcinogenic effect that Formalin has does scare me though, so I only use Formalin as a last resort. I am also very careful when working with it...I use gloves, eye goggles, the whole she-bang. The LC-50 of copper is way too close to the treatment level for me to be comfortable using it. Plus, hobbyist test kits suck in general and copper test kits are no exception so I'm not confident that we can test copper good enough to remain in that small window anyway.

Have you tried fishing for the Goby with a fish hook? Might need a permit.

[Aquattro]

Originally Posted by Myka

Brad, you probably weren't dosing enough Prime. To give you an idea, I was dosing almost 1 mL per day AmQuel into about 6 gallons holding an adult pair of Darwin clowns. I split the dose into two times per day. Remember AmQuel is twice the concentration of Prime. I like those SeaChem Ammonia Alerts too. They aren't overly accurate as I find the ammonia level is often 10x what the alert says. So if there is even a trace that shows up on the alert I do an extra dose.

I am surprised you killed fish with Formalin. I've never killed a fish with it, and I've used it for the better part of 20 years. Although one has to be very diligent about using a good fine-bubble airstone while dipping the fish. The carcinogenic effect that Formalin has does scare me though, so I only use Formalin as a last resort. I am also very careful when working with it...I use gloves, eye goggles, the whole she-bang. The LC-50 of copper is way too close to the treatment level for me to be comfortable using it. Plus, hobbyist test kits suck in general and copper test kits are no exception so I'm not confident that we can test copper good enough to remain in that small window anyway.

Have you tried fishing for the Goby with a fish hook? Might need a permit.

I probably used nowhere close to that amount, so I guess that's why it wasn't effective. I looked at one of those alert stick on things, thought it was pretty hoky looking, so passed.
The formalin was more a math error than anything, I used something like 10x the dose in tank. They were well preserved though...
I haven't researched the LC50 for copper, as I'm more concerned with the long term effects on liver and kidney. with the amount of water marine fish drink, they'd have to process way too much. And yes, testing and adjusting 2 or more times a day with hobbyist equipment is asking for trouble. And scaleless fish are more susceptible. and and and..it goes on, and not a chemical I'll use. I will stock some formalin though, just to have it on hand.

[TimT]

Hi Brad,

Formalin releases Formaldehyde gas which will affect your whole house and family. When doing a Formalin bath it is usually for a half hour and you need to aerate heavily as Formalin depletes the oxygen in the water. For me the risk of exposing my family to a carcinogen is not worth it when there are non toxic methods available.

I would skip the formalin bath as it's nasty for the fish, much worse than copper, and just do a fw bath for 5 minutes. If they have ick go longer if they can take it. If they have ick I would use hyposalinity(1.008) in the QT to control it.

Pretty much all wholesalers and exporters use copper in their holding systems so your fish have already been exposed for at least a month, most likely more as stores generally use copper to.

My recommendation would be the FW dips for the mv and hyposalinity treatment if they have ick.

+1 for Mindy on the Amquel. It is a much better product and doesn't stink like sulfur.

Cheers,
Tim

[Aquattro]

Thanks Tim. I've used formalin before, I know how it affects the house

While FW dips may help alleviate the parasite/protazoan on the fish, it does little to the free floating ones. I've reduced the tank a bit, and will drop it to 1.010 long term, but will continue with the chloroquine. It has no apparent ill effects on the fish, keeps the bacterial filter intact, and other than photosensitivity, keeps it's levels in the tank.

Since I now have a matured system running, I'll keep it going until I replace fish. I still can't keep a q tank going full time, so that's not an option long term.

[Myka]

Brad, if you do get some Formalin 10% is easy to deal with... 0.1 mL per 1 liter of bath water. Most stuff sold for fish is 37% though which is also easy...1 mL per 1 gallon.

Originally Posted by TimT

I would skip the formalin bath as it's nasty for the fish, much worse than copper,

Cheers,
Tim

Good point on the Formaldehyde gas. I use it in our back room with the door closed and the windows open.

Where do you get the info that Formalin is worse for fish than copper? I've never heard that, and in my experiences I have had much better luck with Formalin than copper.