I have one. But I have never seen it flash.
Steve ,
Same here! I have had mine for almost a month and had never seen it flash. I thought what they said might be true about it being stressed and that's why they flash, but i beg to differ. I have a powder blue tang that could not stop bothering him for almost 2 weeks. Every time the tilefish came out of its home, about 20 seconds or so, he would get chased right back into his hole.
The past 2 weeks the powder blue started to ease up and now lets the tilefish swim out in the open and then sometimes not, but yet to see him flash from being chased/harassed.
Last night I decided to wipe down my glass and noticed that every time I that i dried the glass and made the screeching noise, the tilefish would flash but would still stay out, like nothing was happening. If i wiped the glass and it didn't make any noise, he would hang out and stay the same electric blue color. I'm wondering if it's the noise that causes them to flash.
If you don't mind, I was wondering if you could try the same and report back to see if you get the same results? All I used is 2 paper towels. 1 to wet the glass and 1 to dry.
My wife is going to kill me, since my discovery, I have gone through 2 rolls of paper towels.:lolspin::lolspin::lolspin:
Chris