Help Weird Corydora Eyeball Problem???

birdyboots

New Member
Messages
11
Reaction score
13
Points
13
Location
South Australia
Experience
1 year
Hey guys, these past few weeks i've been battling a pretty aggressive bacterial infection in my tank and while i think my tank is generally on the uphill (with only one corydora lost to the entire thing) one of my albinos has developed an odd symptom where its pupil seems to be popping out of its socket in a cylindrical shape?? but every now and then it seems to disappear, and then reappear randomly. The cory itself is still showing signs of lethargy and isn't eating as well as its schoolmates.

Tank parameters are, as of this moment,
ammonia: 0
nitrites: 0
nitrates: 20ppm
PH: 7.6 (it's been steady at this level since the tank was established 8+ months ago)
temp: 26 celcius (78.8 fahrenheit)
filter: spray bar filter with carbon
water changes: generally 25% on a weekly basis but i've upped it to 50% to combat this infection

i've been treating the tank with bactonex over this past week but i've paused the dosages to give my tank a bit of a break for a few days.
IMG_20190910_153807.jpg

is this a symptom of the bacterial infection still present in my tank or is it maybe an injury? i have no idea guys so any help would be appreciated

(copypasting the sick fish template here for additional details)

Tank

What is the water volume of the tank? 65L
How long has the tank been running? 8+ months
Does it have a filter? yes, spraybar filter with carbon (removed for medicating)
Does it have a heater? yes
What is the water temperature? 26 celcius
What is the entire stocking of this tank? (Please list all fish and inverts.) 1 betta, 6 corydora, ??? shrimp

Maintenance
How often do you change the water? once a week
How much of the water do you change? 25% mostly, but 50% right now
What do you use to treat your water? nothing, we use puratap which is treated
Do you vacuum the substrate or just the water? substrate

*Parameters - Very Important
Did you cycle your tank before adding fish? yes
What do you use to test the water? liquid testing kit. the expensive one
What are your parameters? We need to know the exact numbers, not just “fine” or “safe”.

Ammonia: 0.0
Nitrite: 0.0
Nitrate: 20ppm
pH: 7.6

Feeding
How often do you feed your fish? twice a day
How much do you feed your fish? i break up three pellets and scatter it so they can scavenge
What brand of food do you feed your fish? hikari sinking wafers for corydora
Do you feed frozen or freeze-dried foods? bloodworms on rare occasions

Illness & Symptoms
How long have you had this fish? 6+ months
How long ago did you first notice these symptoms? two days
In a few words, can you explain the symptoms? bloody looking lump?? coming out of pupil
Have you started any treatment for the illness? nothing outside of the bactonex for the bacterial infection
Was your fish physically ill or injured upon purchase? no
How has its behavior and appearance changed, if at all? yes, lethargy and less eating
 

chromedome52

Fishlore VIP
Messages
6,387
Reaction score
4,126
Points
458
Experience
More than 10 years
If you look closely, you can see that the eye on the left side is also misshapen, though it isn't as blown out as the right eye. My own tendency at this point would be to euthanize that fish, as it will be blind in both eyes even if you do manage to clear up any infections. I am sorry to see something like that, but I'd guess internal infections are still rampant, and removing that fish might be necessary for the health of its tankmates.

And I know it seems petty after that, but there's no such word as Corydora. It is Corydoras, both singular and plural. It is the Genus name of these fish.
 

DoubleDutch

Fishlore Legend
Messages
17,755
Reaction score
11,730
Points
798
Location
Holland (The Netherlands)
Experience
More than 10 years
If you look closely, you can see that the eye on the left side is also misshapen, though it isn't as blown out as the right eye. My own tendency at this point would be to euthanize that fish, as it will be blind in both eyes even if you do manage to clear up any infections. I am sorry to see something like that, but I'd guess internal infections are still rampant, and removing that fish might be necessary for the health of its tankmates.

And I know it seems petty after that, but there's no such word as Corydora. It is Corydoras, both singular and plural. It is the Genus name of these fish.
I noticed the other pupil as well.
Though you might be right I myself wouldn't euthanise immediatally . To me there are no other signs of an internal infection and it doesn't look ill (though fin and barbellloss).

But maybe my love for Corys is the cause of this post.
 

LDan

Valued Member
Messages
206
Reaction score
132
Points
63
Location
New Jersey
Experience
1 year
@birdyboots How is your fish doing? Any better? If it's still a problem, I would treat with kanaplex. It's for bacterial infections. Also lots of water changes, keep the water very clean.
 

birdyboots

New Member
Messages
11
Reaction score
13
Points
13
Location
South Australia
Experience
1 year
@birdyboots How is your fish doing? Any better? If it's still a problem, I would treat with kanaplex. It's for bacterial infections. Also lots of water changes, keep the water very clean.
I'm really not kidding when i say that big bloody thing will be on its eye one minute and gone half an hour later so i have no IDEA if it's getting better simply because i can't find the cory with the bad eye right now. my tank is still recovering from the bacterial infection so i'm doing 50% water changes once a week but i'm doing smaller water changes a few days in between.

since i'm in australia and we have a LOT of regulations on medications and stuff we don't seem to have kanaplex here? but i'm using a new one we've just gotten brought in called bactonex that i've been told is pretty good. it says it assists in the prevention of bacterial, fungal, and parasitic diseases, but the girl at the place i bought it from (an actual specialist aquarium shop) told me it's really good, so Reviews(tm) on that would be neato.
 

LDan

Valued Member
Messages
206
Reaction score
132
Points
63
Location
New Jersey
Experience
1 year
I'm really not kidding when i say that big bloody thing will be on its eye one minute and gone half an hour later so i have no IDEA if it's getting better simply because i can't find the cory with the bad eye right now. my tank is still recovering from the bacterial infection so i'm doing 50% water changes once a week but i'm doing smaller water changes a few days in between.

since i'm in australia and we have a LOT of regulations on medications and stuff we don't seem to have kanaplex here? but i'm using a new one we've just gotten brought in called bactonex that i've been told is pretty good. it says it assists in the prevention of bacterial, fungal, and parasitic diseases, but the girl at the place i bought it from (an actual specialist aquarium shop) told me it's really good, so Reviews(tm) on that would be neato.
Ohhh I understand! It's ridiculous you can't get fish meds in some countries, what are people supposed to do?! I hope fishie gets better soon!
 




Top Bottom