well thats good to know cos I was going to buy a new koi
Are we talking about the Thingwall Nurseries place? I was talking to the guy there and he has 54 tanks setup in the back room apparently. He does use individual heaters and filters for each tank to prevent he spread of infections and what not. Most of his stock is good quality however I have noticed there was an outbreak of whitespot and he only quarantined the fish showing the signs of it not the whole tank.
His plant selection is a bit iffy, a few of them aren't aquatic plants although he does also have a reasonable selection of frozen foods/bogwoods and erm outdoor stuff which I don't know much about. I haven't actually seen one dead outdoor fish ever since I've been there.
Big downside is he doesn't understand fshless cycles I've tried explaining it to him about 3 times and he insists I should use fish to do the cycle as my method (adding 4ppm NH3) is not effective.
I will probably be buying some Lemon Tetra from him sometime soon!
Andys Aquatics... I went there a few months back (2 maybe) to buy some white spot treatment however I noticed he had barely any freshwater fish and most of it was marine. Was a little disappointed but the people in the shop did seem like great guys. Although they aren't what you'd expect an experience fish keeper to look like! Nevertheless great greats