Fluval Foam
Fluval Foam
Yellow aquarium water and dead fish?
Last week we lost about 6 fish in that tank, all cichlids, the water was yellow, we normally due a water change every couple of weeks because the tank is so big and take about 25% out at a time. Also with the yellow water, a foam has formed on top of the water.
The tank is 5ft by 2ft by 2ft and about 450litres and we have a fluval FX5 filter on it.
Thanks for your answers so far, i was thinking that it could have been ammonia but wasn’t sure.
The tank has been set up for about 2-3 years, and the last fish i added was a couple of months back.
No no filters or equipment.
I do feed prawns to the fish about once a week, but all are eaten but would this cause the rise in ammonia?
That is an indication of high ammonia levels. I assume the water has a faint odor as well.
Is this a new tank? It is strange to have that much ammonia on older more established tank. Since you reference you do a water change every few weeks, it sounds like maybe the tank has been set up for an extended period. So if an older tank, did you add a bunch of fish recently, replace the gravel or filter, or any other drastic change to the system?
To temporarily fix, do a water change immediately. Then investigate what caused the issue to take steps to fix for the long run.
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