Tank size: 54l, 60x30x30 cm
tank age: Fully cycled, one full week with fish
pH: 6
ammonia:none
nitrite:0
nitrate:<10 mg/l
kH:20od
gH:>4od
tank temp:24 degrees celcius
Fish Symptoms (include full description including lesion, color, location, fish behavior): One fish was swimming strangely...