I just did a water change, I only notice a few of the hairs to be turning the brown color, should I add nutes or am I close to when you should leave plain H2O for the taste factor when puffin.

P.S. how much longer appx. till harvest would anyone have idea.

nutes are good.

kinda hard to tell by hair color.

some say when 80-90% are brown, but getting a microscope from radioshack would be better. You can tell when the triches start to become amber colored.