6 replies to this topic

[Stuey]

Type of fish: cardinal tetras
Symptoms: death
Other tank mates: 3 wild discus, 4 corydoras,11 rummynose, 2 harlequins, 1 neon.
Tank size / capacity: 250 litres
Type of Food fed:bloodworm, beefheart
Feeding frequency/amount: daily
Substrate: sand
Type of filtration: eheim 2228
Frequency of filter cleans: 1-2 months
Frequency and % volume of water changes: 75% weekly
Last water change: last sunday
PH: 6.5
KH:
GH:
Nitrite:0 ppm
Nitrate:0-5 ppm
Ammonia:0 ppm
Phosphate:
Water temp:28
Medications used recently to date: nil
Any recent changes..new fish/filters/power outages etc etc: nope!


Bought 11 cardinals around 2 months ago and now down to 5. Found 1 body today. Tank is established and parameters have been stable since the completion of the cycle. No idea why they are dropping off. Could be a bad batch?

[Westie]

Discus trying to eat them?

[Stuey]

Thats the only thing I can think of. I put it down to them eating them until I found a body today.

[bigjohnnofish]

im with jason on this one... discuss are trying to eat them - sometimes they may mortally wound a fish and it scurries away to hide and die

[aajvcad]

If you have a night light. Turn it on and watch from distance. As the tetras lower to the ground discus go in action.


That's how I caught my discus eating tetras. After a while they wont care and will start chasing tetras during the day.

I increased the feeding and it stopped but more waterchanges needed.

good luck

[Angelo]

+1 for the discus eating them. I've had this issue to the point i couldn't keep any tank mates apart from the corys. what finally worked for me was changing the entire look of the tank, move stuff around did a 60% water change and added 10 carndinals and 6 rummy nose. the discus did not go for this time and three months on not a single loss.

[malawiman85]

^Weird but cool.