Fish are dying

[TheLove]

As I said before, I would have expected that velvet would have caused fish loss much faster, but I'm struggling to come up with another solution. It sure seems like it might have been velvet to me. I'm just guessing here - but perhaps velvet, infecting established fish, shows different symptoms? We normally see velvet in new fish, and perhaps in longer term captives, it presents differently?

Jay

So how to eradicate the velvet in tank? I'm not ready to add fish until tank is safe again, and still in grief.

 

[TheLove]

Also no tangs in a 30 gal

Hehehehe

 

[Arabyps]

So how to eradicate the velvet in tank? I'm not ready to add fish until tank is safe again, and still in grief.

Fallow periods: Going Fishless

Going Fallow The reason to go fallow (fishless) is to eliminate a fish disease from your DT (display tank). Going fallow works because you are denying the disease a fish host to feed upon, essentially starving it to death. In order to go fallow you must remove ALL fish from your DT. If just...

humble.fish

 

[TheLove]

Fallow periods: Going Fishless

Going Fallow The reason to go fallow (fishless) is to eliminate a fish disease from your DT (display tank). Going fallow works because you are denying the disease a fish host to feed upon, essentially starving it to death. In order to go fallow you must remove ALL fish from your DT. If just...

humble.fish

Thanks.
I'd go fallow until end of this year i guess. Better to stay fallow longer.

 

[Rickybobby]

Sorry for your losses. Do qt research for sure. I now have a coral invert qt tank and a separate fish qt. And still things can happen

 

[Cole.mormon]

Get a uv sterilizer and leave on for a week without unplugging it

 

[Cole.mormon]

COODIA Internal Green Water Killer Filter Aquarium Tank U-V Light Pump

 

[Tamberav]

I am not sure what is funny. Putting a bunch of inappropriate fish in a 30g causes stress which leads to disease. You didn't QT everything nor did you set up a low stress environment (for those who don't QT). So the chance of failure was high.

Hehehehe

 

[TheLove]

Sorry for your losses. Do qt research for sure. I now have a coral invert qt tank and a separate fish qt. And still things can happen

Thanks for saying that.

I was too scared QT ing coral because unlike fish QT that is able to be setup anytime, Coral QT is like a DT itself in terms of equipments and tank maturity. It is like having 2 systems running in parallel. I run an SPS dominated tank, I figure that coral QT should be able to keep SPS alive and growing for at least two or three months and that's difficult if coral QT is not as equal as DT.

What is your coral/invert QT protocol?

 

[TheLove]

Get a uv sterilizer and leave on for a week without unplugging it

Great. Already have one on hand at the moment and in the process of installing it.

 

[TheLove]

I am not sure what is funny. Putting a bunch of inappropriate fish in a 30g causes stress which leads to disease. You didn't QT everything nor did you set up a low stress environment (for those who don't QT). So the chance of failure was high.

That's the laughing when you're sad.
In my defense i have a strict fish QT protocol running at least a month or more, but not a Coral QT as it would be like having 2 parallel systems, something i can not afford: space & resources.

 

[Jay Hemdal Verified Community Expert]

Great. Already have one on hand at the moment and in the process of installing it.

Remember, a sidestream UV sterilizer will not eliminate infections in an aquarium, as some propagules don't need to leave the fish (and thus never pass through the UV) while others can replicate faster than they are being pulled from the water column. They also do not reduce the fallow period. Additionally, many UV systems for home aquariums are underpowered. UV's main application is to prevent disease transmission between tanks connected as a bank.

Jay

 

[TheLove]

Remember, a sidestream UV sterilizer will not eliminate infections in an aquarium, as some propagules don't need to leave the fish (and thus never pass through the UV) while others can replicate faster than they are being pulled from the water column. They also do not reduce the fallow period. Additionally, many UV systems for home aquariums are underpowered. UV's main application is to prevent disease transmission between tanks connected as a bank.

Jay

No need eh?
Hmmm.... just to help controlling algae at bay then.

 

[vetteguy53081]

Although not a contributor. ......
Your MAG IS HIGH.
CA is low
Salinity slightly low

Mag - 1300
CA - 450
Salinity - 35pt

You mentioned itching- crypto or velvet would be my suspect

 

[Crashnt24]

Doesn't look like any parasites or disease from the corpse photos...

Did you possibly have a bacterial bloom which starved oxygen? Are you running a overflow? Skimmer? Good surface agitation?

 

[rapid]

I did check for stray voltage.
Around 11.3 v AC, no DC.
After flipping some electrical sockets then it became 6.2v AC. Touching water didn't give electrical shock.

am i the only one here concerned about the 11.3 VAC that is being measured in the water ?

How are you measuring this ? are you measureing from water to ground of the power source.

If so and you are reading a AC voltage of 11.3 ? id be concerned of electrocution to the inhabitants. ?

should not see a voltage higher then mabye +or- 1.0

 

[rapid]

 

[rapid]

and the fact that when you flip a light switch it lowers the AC voltage !! Your fish more then likely died of electrocution.,

 

[Dolelo96]

I’m really sorry for your loss. My tank was wiped out because of velvet. I dipped my coral, but didn’t quarantine them. You can get details and changes I’ve made on my build thread. These are the first two I lost. This is what velvet looked like in my tank..


When your fallow period is complete, make sure to research the fish you choose to add to your tank. That was a lot of fish for a 30 gallon tank and most would agree that a 30 gallon is too small to house a tang. I only had two clownfish, a flame hawkfish and blue chromis in a 40 gallon tank.

 

[Jon Fishman]

1) bigger UV than listed, or don’t botjer with one at all

2) I know nothing about dosing (for aquariums) but that strikes me as a lot of dosing for a tank that is young and up until recently had no corals. Something has to consume the elements you add