Hi,
I'm just a beginner when it comes to Tangs, but I think mine were breeding this morning! They are approximately 2 1/2" long. I did a water change last night and and all of the cyps were swimming back and forth across the tank very quickly. I thought I had stressed them out. This morning I was watching them and the male and a female were in the upper reaches of the center of the tank. She would go up to him and nuzzle his side and he would then turn and chase all the others away. Then he would kind of push on her side and she would quickly turn around and snatch at something in mid-water. Now I can pick her out from all the other females because her jaws look slightly bloated. Even my boyfriend could see the difference. What do you guys think?