Losing Julii Cories

[hilltopper]

I'd had 4 Julii Cories in my 29 gallon tank since July 10th of this year. The tank has been cycled since around June 23rd (started May 7th...took awhile). The tank was cycled with 4 Danios, all of which are still alive. The only other tankmates are 2 African Dwarf Frogs (they are definitely not the Clawed Frogs...they have webbed feet).

Anyway, I lost one of the Cories November 22nd. This one never acted "right" from the day I got it. It had a white spot on the front of the snout and the day before it died, one of the eyes turned red. Other than being red the eye looked normal. I found a second Cory dead yesterday. Water parameters yesterday showed 0 ammonia and nitrite. I do 33% water changes biweekly and nitrate measurements have never been above 25. PH is around 7.4. No idea on hardness of the water.

Looking for feedback on what may be going on...

Thanks,
hilltopper

 

[Lotus]

It sounds like they might have a bacterial infection.

 

[love_fish]

It sounds like they might have a bacterial infection.

Yea, what are you feeding them?

 

[hilltopper]

The surface fish are fed TetraColor Tropical Flakes. The bottom feeders are fed Hikari Sinking and Algae Wafers and TetraMin Variety Wafers. Once a week I feed them a frozen bloodworm cube.

If it is a bacterial infection should I treat the tank with something?

Thanks for the help.
hilltopper

 

[Lotus]

There are some disease ID photos and suggested treatments here: http://www.fishpalace.org/Disease.html
Have you checked their barbels to see if they have been eroded?

I would advise a broad-spectrum antibiotic.

By the way, the food you're feeding wouldn't cause a bacterial infection.