Corydora has White Bumps

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E

Esten

Feeder Fish
MFK Member
Dec 19, 2008
58
0
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New York
The Corydora has white bumps near the dorsal fin, the anal fin and also has white bumps on the tail fin. The fish is very active

I haven't added any new fish or anything to the tank in like 6 months. None of the other Corys have it. I have a total of 4 Corys and 4 Zebra Danios. There in a 29 gallon tank.

The water conditions are:
The ph - 6
ammonia - .25
nitrate - 0
nitrite - 0
Temperture - 80 F

What do you think it is? What should i do about the it?


http://www.youtube.com/watch?v=9IwBjyfxEHk <-- video of the fish
 
I do NOT think it's ich. Ich has a specific life cycle and 6 months is pushing it by about 5 1/2 months. Besides the fact it doesn't look like ich, it looks almost like he got nipped (Danios *will do that). Or maybe was crawling under something and got scraped. My 1st guess is a Danio did it, those are ornery little fish sometimes :-)
Danios and Corys like cool water, 80 degrees is way too warm for them. They like it around the lower to mid 70's so I'd get that heater out of the tank.
Edit: Is that tank newly set up? YOur ammonia and nitrite should always read '0' and you should have some sort of a nitrate reading if it's a cycled tank. (Oh duh-you already said it's been set up 6 mo). Do a quick 50% water change and get that ammonia outa' there if you can.
 
i think there is ammonia in the tank because i dont think my filter is doing its job. its an aqueon power filter 30.
Have any suggestions for what filter i should get?
 
I don't know which filter that is but WalMart has an AquaTech 330 gph filter that I really llike for my 30 g tanks. Yea, you probaly just don't have enough filter media (the sponge) to take care of the tank. I'd get another filter (keep the old one on) and do extra water changes until the new filter cycles. You don't have *that much ammonia but always aim for '0'.
 
alright. thanks for all the help twistedpenguin.
 
for a filter an Eheim 2213 would do the job well and a 2215 would do a sick job
 
What test kit did you use? At low pH though, ammonia is not really a concern as the toxic effects are deactivated by the acidic conditions turning ammonia into ammonium which is pretty harmless to fish unlike ammonia.

That is not ich. Could you please get closer shots? If you have access to microscope, it doesn't hurt to attempt scraping it and obtaining magnification images to determine whether this is flagella, bacterial or viral. The white cysts appear to be swaying in the water from the looks of your video which is strangely what external parasites would do.
 
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