Backyard Aquaponics
A place to discuss aquaponics

No deaths today (no pics) so crossing the fingers. Have seen some limited flashing but not widespread.

Doug, from 1:1000 dosage...having a 630 gal tank, I would put in just over a half gallon of peroxide if I am figuring right and leave it in there to gas off with the aeration. I plan to just circulate the water back into the tank and bypass the GBs so there will be PLENTY of aeration. Probably hold back on feed? for at least a day or so?

I really want to hold off on the antibiotic unless I have to use it...however, there have been no deaths today so I am quietly optimistic.

Thanks

I now have a pic of the fish that I have lost as of late the the quantity of deaths has dwindled significantly.

Interesting to note that there is no fungus but only the red streaks....

How well are the rest eating? Better/worse/about the same as at the height of the fuzzy stage? Is the fish hollow-bellied, or is that just the positioning of the fins against the belly?

The areas around the base of the pectoral fin and below the rear of the dorsal fin look soft or something. Is there a coating in those areas? Extra slime? Can you explain the apparent change in surface texture?

What is the condition of the remaining fish? Physical appearance and activity?

They are voraciously hungry! Very active eaters. When I throw food in they circle in a school and then shoot for the top and some clear the water. They make short work of the food.

I think the belly part is the lighting though it appears there are scales either missing or repositioned where the white blotches are.

I noticed no extra slime just the scales seemed out of place or missing.

As for the other fish, they are behaving pretty normally... they seem to swim back and forth. Plenty of DO.
Water quality is as it should be.

DT, that sounds good. Feeding activity is a good indicator of health. I'm inclined to take a 'wait and see' approach for a couple days. Given that this is the only death today and that feeding is excellent, perhaps this death is just a bit of residual fallout from the whole nightmare. Do some careful observation, and see if you can recognize a few fish to be able to compare their specific progress over the next day or two. If things are going well, the red should start to fade. Watch for 'sulkers' who don't come to get breakfast. I would prefer that you not have to treat with either antibiotics or peroxide, but if you're not seeing daily improvement, then we may still have to resort to that.

I'm assuming that during the worst of their illness that their feeding was off?

Greenedo, second opinion?

Oh, and how much salt (ppt) is in the system right now?

Well I have done a complete water change so there is no significant salt in the system at present. Should I add some? My cilantro is so salty I will not be able to use it.... everything els except for the ornamentals died.

I'm running 2ppt as a preventative right now. It might help tidy things up, and at that level, I'm not bothering my plants. I'd like to hear from Greenedo, though. Or a second opinion from anyone else, too. Like I stated earlier, I'm used to treating small-scale ornamentals with toxic stuff.

I am taking a wait-and-see aproach for the moment....I may add a little salt. I have notice there is one large fish with one Eye that is completely white. could it be "pop eye?" He swims fine. I really don't see any stragglers.

That fish is probably just blind in one eye. I have a few that have a cloudiness to one eye, although none that are outright white. "Pop-eye" is where the eye gets grotesquely swollen and protrudes from the eye socket. The fish that I killed with pop-eye kept her injured eye closest to the tank wall to protect it, and sulked. She had been injured by her male and the eye then became infected. Very painful to look at.

I would put 1-2ppt salt in just as preventative. And yes, wait and watch (a lot) and see.

I am more optimistic that I have turned the corner. just one death in three days and the fish are feeding like crazy... I am pretty much giving them what they will eat, trying to boost the nitrates to get my ornamental plants healthy again. I will be planting some leafy stuff soon. I sincerely hope the crisis is now over. Thanks all for your help. Especially you Janet and Steve.

Oh, very good, very good!!! I am so happy for you! Just watch your nitrites and ammonia as you boost the feed. I would have to feed with a coal shovel to give them all they want, and my bacteria won't handle that yet.

Glad to hear they're doing better. Do any of the remaining ones look at all like the one in the picture?

Low salt seems rather benign treatment, If you have some that have open sores, you might want to try topical, but if you are past the mass die-offs, I would wait and see too.

I am taking a more drastic approach...if they look affected by ulcers sores or lethargy, out they go! Still doing well..