Tank size: 40l
pH: 7.5
ammonia:0
nitrite:0
nitrate: never higher than 10-20
kH: approx 100
gH: 60
tank temp: 25
Fish Symptoms: A single black phantom tetra is looking "blotchy", with small patches of opacity (NOT spots) on the body and a couple on the fin along the underneath of the tail. The body is normally a little translucent but these areas look less so, though they seem to be the same colour as its normal body colour, giving it a kind of dirty appearance. He also appeared to have what at first I thought was a white spot, and then realised was more like a damaged scale, which looked normal 24 hours later. All other aspects of behaviour are normal, eating well and not showing any unusual behaviour.
Volume and Frequency of water changes: normally twice a week, approx 30% each change, though I have upped this to every two days since the fish looked odd.
Chemical Additives or Media in your tank: I have treated with melafix for four days but his appearance is no different.
Tank inhabitants: Other black phantoms (which all look fine and dandy), one dwarf gourami, amano shrimp and assassin snails. Some cabomba, java moss, java fern, salvinia and hygrophila. Well soaked driftwood that's been in the tank for months with this fish.
Recent additions to your tank (living or decoration): Some new java moss and salvinia natans a few days before I noticed these symptoms, however these were well washed and quarantined for 48 hours before adding to remove pesticides that might kill shrimp (shrimp are OK.)
Exposure to chemicals: Unless something came in on the plants, I don't think so.
pH: 7.5
ammonia:0
nitrite:0
nitrate: never higher than 10-20
kH: approx 100
gH: 60
tank temp: 25
Fish Symptoms: A single black phantom tetra is looking "blotchy", with small patches of opacity (NOT spots) on the body and a couple on the fin along the underneath of the tail. The body is normally a little translucent but these areas look less so, though they seem to be the same colour as its normal body colour, giving it a kind of dirty appearance. He also appeared to have what at first I thought was a white spot, and then realised was more like a damaged scale, which looked normal 24 hours later. All other aspects of behaviour are normal, eating well and not showing any unusual behaviour.
Volume and Frequency of water changes: normally twice a week, approx 30% each change, though I have upped this to every two days since the fish looked odd.
Chemical Additives or Media in your tank: I have treated with melafix for four days but his appearance is no different.
Tank inhabitants: Other black phantoms (which all look fine and dandy), one dwarf gourami, amano shrimp and assassin snails. Some cabomba, java moss, java fern, salvinia and hygrophila. Well soaked driftwood that's been in the tank for months with this fish.
Recent additions to your tank (living or decoration): Some new java moss and salvinia natans a few days before I noticed these symptoms, however these were well washed and quarantined for 48 hours before adding to remove pesticides that might kill shrimp (shrimp are OK.)
Exposure to chemicals: Unless something came in on the plants, I don't think so.
