Hello all, I've lost 4 of 6 cory panda's in about a week. I'm very worried for the remaining fish.
1~What type of fish is afflicted?
Of the 4 cories that have died, 3 were overnight deaths, with no visible signs of stress or sickness leading up. 1 was attacked by the other fish in the tank, losing much of his tail and died (I assume) from stress/injuries.
I'm worried for the two remaining cories, one looks fine, is eating, and active - but that's how the others were before they died. The other has, nearly overnight, developed white lines/patches (see picture). Which look like a bacterial/fungal infection, but I can't match it to pictures I've seen online. Otherwise it is active and still eating.
2~What are your tank parameters
3~ How large is the tank? How long has the tank been set up?
It's a 30 gallon tank, set up for about 6 months.
It has several types of live plants that provide cover.
Substrate is not ideal for cories, it is larger, but smooth.
There is a layer of fertilizing substrate under the rocks.
4~What type of filtration are you using?
Filtration is Aqueon Quietflow 30. Lists 200 gph.
5~How many fish are in the tank? What kinds of fish are they and what are their current sizes?
6~When is the last time you did a water change and vacuum the gravel?
Water change and vacuum were about a week ago. Have been changing and vacuuming roughly every two weeks.
7~How long have you had the fish?
All but 3 cories have been in the tank since it was set up.
The newest 3 have been in for about a month (purchased early Jan).
8~Have you added anything new to the tank
No changes except replacement of filter at last water change.
9~What kind of food have you been feeding your fish
Tropical fish flakes
Sinking algae disks
1~What type of fish is afflicted?
Of the 4 cories that have died, 3 were overnight deaths, with no visible signs of stress or sickness leading up. 1 was attacked by the other fish in the tank, losing much of his tail and died (I assume) from stress/injuries.
I'm worried for the two remaining cories, one looks fine, is eating, and active - but that's how the others were before they died. The other has, nearly overnight, developed white lines/patches (see picture). Which look like a bacterial/fungal infection, but I can't match it to pictures I've seen online. Otherwise it is active and still eating.
2~What are your tank parameters
- pH: 6.2
- Alkalinity: ~40
- Chlorine: 0
- Harness: ~150
- Nitrite: 0
- Nitrate: ~20
3~ How large is the tank? How long has the tank been set up?
It's a 30 gallon tank, set up for about 6 months.
It has several types of live plants that provide cover.
Substrate is not ideal for cories, it is larger, but smooth.
There is a layer of fertilizing substrate under the rocks.
4~What type of filtration are you using?
Filtration is Aqueon Quietflow 30. Lists 200 gph.
5~How many fish are in the tank? What kinds of fish are they and what are their current sizes?
- 2 Cory pandas, < 1"
- 1 Pleco, ~ 2"
- 3 Platies, 2"
- 9 Tetras, 2"
6~When is the last time you did a water change and vacuum the gravel?
Water change and vacuum were about a week ago. Have been changing and vacuuming roughly every two weeks.
7~How long have you had the fish?
All but 3 cories have been in the tank since it was set up.
The newest 3 have been in for about a month (purchased early Jan).
8~Have you added anything new to the tank
No changes except replacement of filter at last water change.
9~What kind of food have you been feeding your fish
Tropical fish flakes
Sinking algae disks
