The Hastings District Council has calmed the rough chlorinated waters with fish owners in Havelock North.
Town resident Gary Fargher, who lost many of his 40 fish this week, said he met the council and was happy with the outcome.
The fish are claimed to have reacted badly after the council added chlorine to the water supply in an attempt to deal with a low-level E. coli contamination.
Mr Fargher spoke highly of HDC water-services manager Brett Chapman, saying he had been "very good and sympathetic".
"I had a good chat with Mr Chapman and we have come to a settlement which I am very happy with," Mr Fargher said.