DBradar3
Aquarium Advice Regular
I recently got a handful of new fish into my 20gallon tank. I only had an oto and brought in a cory and three mollies (1 male, 2 females).
My oto immediately got sick with ich and perished before the first day of treatment finished. Turned out one of the white female mollies had it, so I treated the entire tank and the ich went away.
Just a few days later I noticed the same white molly get white patches on the edge of her fin causing it to erode. I began fungus treatment.
Second day of fungus treatment, the new cory started floating. I'm not super familiar with the typical coloration of the underbellies of cories. There's a single red line along each base of her fins, has purple coloring on the bottom of her neck(?) between the gills. She is not pale, her black spots are as dark as when I got her.
She definitely has control of her faculties; she will control where on the surface she's floating, but currently that's all she can do.
I have separated her into the hospital tank in case the medicine had something to do with this.
Both tanks have the same parameters. Ammonia 0, nitrites 0, nitrates 20-40, temp 76/78, pH has always been high at 8.4 (I think I've finally figured out it's the heater; trying to replace it. If it's not the heater, I'll have to get wood).
The initial tank is 20 gallons and fully cycled. The hospital tank is 5.5 gallons, fully cycled.
Both have carbon filtration Quietflow 10 (works up to 20gallons), however the 20 just recently had the carbon removed for medication.
Main tank currently had the cory catfish (female), two white mollies (female), and one black molly (male). All are about an inch long.
The reason I had to get these fish, my other fish died of shock from a massive water change trying to figure out the pH issue , so water change was very recent. The sand is not vacuumed. Nothing new added to the tank other than the fish.
Fish get fed algae flakes four days a week, frozen peas two days a week, and fasted one day a week. The algae flakes are in fact what they are fed at the pet store I got them at so it's not new to them.
What I'm having trouble figuring out is if the cory is diseased or infected.
My oto immediately got sick with ich and perished before the first day of treatment finished. Turned out one of the white female mollies had it, so I treated the entire tank and the ich went away.
Just a few days later I noticed the same white molly get white patches on the edge of her fin causing it to erode. I began fungus treatment.
Second day of fungus treatment, the new cory started floating. I'm not super familiar with the typical coloration of the underbellies of cories. There's a single red line along each base of her fins, has purple coloring on the bottom of her neck(?) between the gills. She is not pale, her black spots are as dark as when I got her.
She definitely has control of her faculties; she will control where on the surface she's floating, but currently that's all she can do.
I have separated her into the hospital tank in case the medicine had something to do with this.
Both tanks have the same parameters. Ammonia 0, nitrites 0, nitrates 20-40, temp 76/78, pH has always been high at 8.4 (I think I've finally figured out it's the heater; trying to replace it. If it's not the heater, I'll have to get wood).
The initial tank is 20 gallons and fully cycled. The hospital tank is 5.5 gallons, fully cycled.
Both have carbon filtration Quietflow 10 (works up to 20gallons), however the 20 just recently had the carbon removed for medication.
Main tank currently had the cory catfish (female), two white mollies (female), and one black molly (male). All are about an inch long.
The reason I had to get these fish, my other fish died of shock from a massive water change trying to figure out the pH issue , so water change was very recent. The sand is not vacuumed. Nothing new added to the tank other than the fish.
Fish get fed algae flakes four days a week, frozen peas two days a week, and fasted one day a week. The algae flakes are in fact what they are fed at the pet store I got them at so it's not new to them.
What I'm having trouble figuring out is if the cory is diseased or infected.