Thanks for the quick reply and the advice everyone.
Here is some more info if that helps.
Just to check my maths, the tank is a 100 liter tank (90cm x 32cm x 37cm).
When we first setup the tank we treated the water with tetra aqua safe and easy balance. and then we left the tank and filters running for two weeks (we transfered filter media from the old tank to the new one to get the bacteria started).
The fish average in size between 1 inch and 3 inches.
We are in South Africa.
we are using sera dipsticks for testing.
NO3 25mg/l
NO2 5mg/l
GH>10 d
KH 6 d
ph 7.2
No Heater
Aeartion: 2 airstones + under gravel filters airstone
Water change 20% every week
tank size: 90cm x 32cm x 37cm
the tank has been running for about 5 weeks
filtration: 2 X corner box filters with activated carbon and filter floss
1x under gravel filer with one lift pipe.
tetra easy balance is added every time we do a water change.
we feed everyday once with flakes
we have 5 amazon swords
Unusual findings on the Goldfish:
one has a ulcer by its mouth
Unusual behavior:
lethargic, some are swimming lopsided and sideways, lying on the bottom
Medications/what has been tried or done do far:
Tetra General tonic, only put in today so nothing we can see.
thanks again for the help |