What is your longest surviving record for ranchu under your care？
Yes bro, proper quarantine is crucial especially new shipment from overseas.
Water parameter is different from overseas and local, need time to quarantine and acclimatisation.
Reputated farm will quarantine for a week before release for sales.
With proper care and frequent WC, you can have them at least 3 - 5yrs.
So far, I only keep Oranda above 1.5yrs,
ranchu have not tried above a year yet usually few months sianz liao and pass it to other ppl.
Buy fish buy an eye fish^
One-eyed fish is unlucky@
Live goldfish has only one eye&
Fish with one eye, OK?%
What to do with blinded fish/