Fish Catastrophe Part II: Cory Problems

Oh no! Sick fish?! Come here and see if someone can help!
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Read this before posting!!

Since this board has been up, we have found there are several questions that routinely get asked in order to help diagnose problems. If you can have that information to begin with in your post, we'll be able to help right away (if we can!) without having to wait for you to post the info we need.

1) Your water parameters - pH, Ammonia, Nitrite, Nitrates and salinity (if appropriate). This is by far the most important information you can provide! Do not answer this with "Fine" "Perfect" "ok", that tells us nothing. We need hard numbers.

2) Tank size and a list of ALL inhabitants. Include algae eaters, plecos, everything. We need to know what you have and how big the tank is.

3) Feeding, water change schedule and a list of all products you are using or have added to the tank (examples: Cycle, Amquel, salt, etc)

4) What changes you've made in the tank in the last week or so. Sometimes its the little things that make all the difference.

5) How long the aquarium has been set up, and how did you cycle it? If you don't know what cycling is read this: Fishless Cycling Article and familiarize yourself with all the information. Yes. All of it.

We want to help, and providing this information will go a LONG way to getting a diagnosis and hopeful cure that much faster.

While you wait for assistance:
One of the easiest and best ways to help your fish feel better is clean water! If you are already on a regular water change schedule (50% weekly is recommended) a good step to making your fish more comfortable while waiting for diagnosis/suggestions is to do a large water change immediately. Feel free to repeat daily or as often as you can, clean water is always a good thing! Use of Amquel or Prime as a dechlor may help with any ammonia or nitrite issues, and is highly recommended.

Note - if you do not normally do large water changes, doing a sudden, large water change could shock your fish by suddenly changing their established water chemistry. Clean water is still your first goal, so in this case, do several smaller (10%) water changes over the next day or two before starting any large ones.
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OraLacerta
Former Staff Member
Posts: 573
Joined: Mon Apr 17, 2006 12:51 am
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My Puffers: Tetraodon biocellatus.
RIP: C. travancoricus, Chilomycterus schoepfi. Canthigaster jactator.
Location (country): USA
Location: USA

Fish Catastrophe Part II: Cory Problems

Post by OraLacerta »

Ok, well, this is Part II of my problems that seem to be never ending...

Not only did 3 of my beloved fish die but my husband and I are in the middle of repairing our car, and renovating our house which we think had asbestos in the tiles we just ripped up, so we are sending a sample away to be tested while imagining dying slowly from lung cancer...
So needless to say, we are absolutely devastated by these past 2 weeks' events...

So, anyways, our largest tank, a 30 or 35 gallon (I think the latter, it was sold to us as a 29 though its dimensions don't match a 29's) had a sudden outbreak of some mysterious disease.

This past Saturday I was carrying out my 50% water change/gravel vac/filter & decor cleaning as usual. I did nothing different than I normally do, the tank was at its usual levels after a week:

Nitrates: 20
Nitrites: 0
pH: 7.0
Temp: 78F

Tank inhabitants: 9" Pangasius Cat, 5" Bala, 3" Yoyo loach, 3- 3" corydoras (one spotted two emeralds).

The next morning I went to feed the fish their normal diet (Pangasius gets a couple catfish pellets followed by an algae wafer or two, the rest are fed fish flakes and spirulina flakes). I looked at my small school of full grown corys and realized that my oldest, the spotted, had his entire mouth engulfed in white. White that wasn't cottony, not translucent and slimy, but white like a big, uniform spot of ich large enough to engulf his moth and withering tendrils. I was clear to me this, whatever it was, was eating away at his flesh, and I quickly went through online Cory forums, my own fish books, and even google, searching for a positive ID on this mysterious and deadly affliction.

I wasn't satisfied by it, but the closest thing seemed to be 'fish fungus' which I knew was really bacterial, so I put the only medicine I trust, my Melafix, into the tank (yes hurting badly for a QT tank).

Well, I watched over him carefully and despite the affliction he was swimming around normally so I decided he could survive through my trial-and-error diagnosis. I was wrong, he was dead the next morning, and to my terror one of my emeralds, carefully inspected the night before, had his entire left side engulfed by the same white, flesh-eating something-or-other.

I was terrified to lose any more fish (my dragon goby died less than a week before in my brackish tank) and I fumbled around in my fish medicine box-filled with a medley of medicines I had never used before and had acquired from friends, family, and the woman who sold me the tank.

I saw "Coppersafe" though I didn't want to risk using it in a tank with two scaless fish. Several meds contained dyes and ingredients I couldn't understand and there for was skeptical of.

After my emerald cory died that evening, I saw the fins were eaten away and the body had the red lines of septicemia creeping from the belly up. I Inspected my last cory and realized he has the tiniest little red line forming below a fin. That was enough for me to reach for a brand of medicine in desperation, and plunk it in the tank...

The brand is some cheap Walmart brand I suspect, considering that I have the entire line from 'Algae Clear' to 'Ammonia Clear' from the idiot (sorry) I bought the tank from. The package convinced me with its terrible little diagrams of 'fish fungus' and 'Septicemia' that I had to try it. The brand name is 'Jungle: Fungus Clear' and part of their line of mostly unnecessary meds called 'tank buddies'...

So, now my tank is Gatorade green, but my fish are all healthy and the cory is symptom-free.

Now I just wonder what is causing these sudden problems with my fish? I doubt that my dragon goby's death is related to the corys considering they are in totally different environments with different symptoms, but I can't help but feel I've failed them in some way...

Does anyone have any suggestions as to why this may have happened?
Also, what do you think is in the medicine I gave them, is it copper? If so, how can I safely remove it (the box says to leave it in the tank for 4 days, which is tomorrow)?
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puffergeek
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Post by puffergeek »

I'm so sorry to hear about your loss :cry: Losing any beloved pet is about as rough as it can get, but hang in there!

I looked up the "Jungle Fungus Clear" and found this:

"The active ingredients are nitrofurazone, furazolidone and potassium dichromate"

It looks to be copper free, and I would guess the "Gatorade Green" was from a dye. (It can't be fish medicine without some Yellow no. 5!) You should be able to remove it with water changes, fresh carbon, and maybe even a Poly-Filter (or similar product) if your LFS can get them.

Good luck! I hoped that helped a little.
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OraLacerta
Former Staff Member
Posts: 573
Joined: Mon Apr 17, 2006 12:51 am
Gender: Female
My Puffers: Tetraodon biocellatus.
RIP: C. travancoricus, Chilomycterus schoepfi. Canthigaster jactator.
Location (country): USA
Location: USA

Post by OraLacerta »

Thank you puffergeek.

Well, I'm very glad there wasn't any copper in there. I'm going to add new carbon to the filter today after I clean it, and I'll probably do a 75% WC just to try and get most of this stuff out of the water.

The last corydora is still doing very well, and I'm thinking I may move him into my 20 gallon with the 3 baby corys so he isn't so lonely... but that will be after a month or two just so I can be sure he won't come down with anything.

You did help, thanks so much :)
-Michelle

Prevent unnecessary deaths due to disease- quarantine ALL new additions at least 4 weeks in a separate tank before adding to your main display tank!

Puffers: Hindenburg the Figure Eight, 75gallon Brackish
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