Are you sure about that temperature? CPDs are on my list for my next tank, and nothing in my research has indicated temperatures that low. Seriouslyfish says 20-26C, which is 68-78.8 F.alink said:That is a Celestial Pearl Danio aka Galaxy Rasbora. These are sub-tropical fish which prefer water in the 60 degree range (F).
I confused them with WCMM. But they do like it cooler over warmer. Here is a direct quote from TFH Magazine article..ClearEyes said:
Air temperatures around the area vary from near freezing in the winter to almost 95°F in the summer. Travel agencies report that the weather in the area is “mild and pleasant” for the travel season, but it can be “cold, damp, and miserable” in the rainy season. Many hobbyists have reported success keeping celestial pearl danios in temperatures in the low 70s. Few have had luck keeping them in warm water at 80°F or above, so keep that in mind as well. It might be best to keep them in unheated tanks, similar to the way you would keep their cousins, White Cloud Mountain minnows