Catatonic cory, possibily ich? stress?

  • #1
Hi everyone,

Last monday I got 6 corydora kanei and they are in quarantine, in an established tank. Tested the water and everything reads 0 (although I only have nitrite and ammonia tests, I have only found one kit around here that includes nitrate test and plan on buying that with my next paycheck in a couple weeks). Ph somewhere between 7.2 and 7.5.

One of the corydoras has been extremely dull, only seen swimming around a little, otherwise just laying there, though seen in various parts of the tank so he is moving a little, though he`s not in attentive mode (fins aren't up, no wiggling going on). After a few days, I though this might not just be stress from the new move. The other 5 are doing their thing but I have seen one or another occasionally flick? I think is the term. I have not seen any white spots yet, so I want to take preventative actions.

(I've read horror stories online of corydoras frequently dying after exhibiting such catatonic behavior, I really hope there are more cases of surviving doras than not! )

I've used Stressguard now for two days in a row, the minimum dosage recommendation. This morning I used food drenched in garlic juice (homemade) and that seemed to stimulate him a bit, got him to eat for few minutes before he went back to being catatonic, all the fish loved it.

I'm slowly raising the temperature of the tank (it was 22 C two days ago, today it`s 26 C, tomorrow my plan is to raise another couple of degrees, if it's deemed question on this is below.

Catatonic corydora and some flicking behavior, no white spots (yet?).

My two questions are....after poking around online on various forums, someone wrote that you shouldn't raise the temperature above 29 C with dwarf corydoras. Is this the case with other corydoras? Is this even true?

Can I use Ich medication I bought today, the store only had one type of ich medication, which contains the following: Sorry if written wrong, I'm doing a rough translation from Portuguese:

(verde malaquita) green malachite 0,60 g
(azul de metileno) blue methalyne 0,30 g
(sulfato de magnésio) magnesium sulfate 0,30 g
(cloreto de potássio) potassium clorate 0,20 g
(sulfato de cobre) copper sulfate 1,00 g

Is this safe for Corydoras?

Thanks for the any and all inputs.
  • #2
This doesn't sound like ich to me - I would expect lots of flashing (although you did describe that they're doing some flashing) and maybe even some gasping at the surface with ich, even before spots were visible on the fins and body.

Have you used any dewormers? If these are wild-caught, it's extremely likely they have internal parasites of some sort. It's less likely if they're captive-bred, but still possible. Is he skinny? Normal poop?

What brand of ich medication is it? Corys are definitely more sensitive to chemicals (especially stuff like copper), but I'm really not sure what they're tolerance is. Ich-X would be safe for sure, but I'm not sure if you can get that internationally. Hopefully someone else will chime in with more information on tolerances. If the bottle gives a "light" and a "heavy" dose, go for the light.
  • #3
What Cory are we talking about ? Any pics ?
  • #4
  • Thread Starter
  • #5
Hi guys, thanks for the input...Anyways, the cory didn`t make it...

Yesterday I was so sure it was on the up and out! Should I do the temperature treatment anyways, as preventative for the other dudes?

I`m not sure if these are wild caught or bred, I should have asked the store, but it`s a major brand pet store around here (Cobasi), they were on the cheap side so I think they might be bred, not wild? But I have no idea how this works here.

Thank you for the input on the medication, I guess I`ll keep it around for my Rosy Barbs. The brand is Labcon.

The type is kane's corydora. Here is a picture of the active ones:


And a picture of the one who passed away:

  • Thread Starter
  • #6
Oh, also, the poop seems normal (with the rest of the fish) so I'm hoping there isn't any sort of parasite going around.

But yeah, I decided to not raise the temp more than 26 c, I was getting worried about their sensitivity to the heat, since I've not read explicitly that it's safe for them...


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