Does anyone know where to buy a nitrate testing kit in and around Chiang Mai? Which shops have them in stock? I've looked at most of the aquarium shops and the laboratory supply shops but no real success. Any pointers? cheers

The Aquarium shop located in the Khamtieng garden market, which is located behind Lotus on the Superhighway has all the testing kits you need.

I bought separate nitrate, ammonia and PH tests last week.

Good aquarium shop if you haven't been there. Very clean and healthy fish.

Just to add, that there are a few more shops a little further into the garden market that also carry aquarium supplies (generally at lower prices). I got my nitrate kit at one of those. But I agree about the quality of fish and the great selection at the largest shop there.

Cheers guys I'll have a look.