After my gill disease thread, I have now noticed the guppies have developed a red coloured patch actually behind/to the side their gills, which you can see through their skin. They don't seem to have any behaviour changes yet.
amy4342 said:Do you use dechlorinator when you do a water change? If chlorine levels are high in your tapwater, the chlorine can cause irritation. If you do use a dechlorinator, does it treat chloramine? If your local water supplier uses chloramine (a mixture of chlorine and ammonia), the dechlorinator will burn off the chloring but leave the ammonia. Just some possible thoughts.
Water quality report
Substance Typical value UK/European limit Unit
Calcium 69.5625 - mg Ca/l
Magnesium 21.9775 - mg Mg/l
Residual chlorine - free 0.08 - mg/l Cl2
Residual chlorine - total 0.12 - mg/l Cl2
Coliforms 0 0 no/100ml
E-coli 0 0 no/100ml
Aluminium 7.942 200 Âµg Al/l
Colour 0.86 20 mg/l Pt/Co Scale
Conductivity 508.77 2500 ÂµS/cm
Fluoride 0.074 1.5 mg F/l
pH (Hydrogen Ion Conc.) 7.52 6.5 - 10.0 pH Units
Iron 11.58 200 Âµg Fe/l
Manganese 2.42 50 Âµg Mn/l
Nitrate 24.4313 50 mg NO3/l
Nitrite 0.0093 0.5 mg NO2/l
Sodium 15.61 200 mg Na/l
Turbidity 0.126 4 NTU
Copper 0.0209 2 mg Cu/l
Lead 0.703 25 Âµg Pb/l
'm guessing that means we using Chlorine round here still?
amy4342 said:'m guessing that means we using Chlorine round here still?
Yup. Although, if you're de-chlorinating, that shouldn't be the problem. Just to cover all bases, you are using old tank water to clean the filter media also? I wouldn't have thought it was an ammonia problem because you left the old mature filter in for quite a while to seed the others. Strange.