Well major, major
Got home after dark last night... thought I'd prepare another tank so that I could transfer the last 100 fingerlings and setup the growbeds this weekend...
Filled the tank up.... and went to bed... got up early and looked at the existing tank....
Yep definitely time for a water change... the new taqnk looked crystal clear... transferred the fingerlings... and went inside for the morning cup of coffee...
As soon as I started filling the jug I knew I had a problem.... the water board has been replacing some major pipes into town... and was supposed to bring them online this weekend....
The water coming out of the tap was pure white... and stayed that way for over ten minutes.... smelt like hospital grade domestos.... obviously massively treated with chlorine and chloromine... you wouldn't even swim in it, let alone drink it...
Went and checked the tank... smelt like crap... and the fish were not happy.... very listless and fanning their fins flat out....
Have transferred them to the hospital tank... salted (1ppt) and wacked two airstones in... they're struggling... but in the last half hour are looking a little better....
Been waiting for the landlady to OK a rainwater tank... but bugger it... I'm gunna buy one this weekend anyway...
Prognosis for fish.... 60/40% .....
Went and checked