Cool but never before seen (by me at least) Ptereleotris zebra behavior
Hi,
I tried to find some info on the topic, but have had limited success. The part that "sucks" the most is that I caught it on video, but can't seem to figure out how to put up a video on this site. Anyways, here's what happened: I purchased 3 zebra dart gobies (Ptereleotris zebra) about 2 months ago. They've only gotten over their skittishness about 2 weeks ago. I was just watching my tank a few nights ago, and noticed 2 of my three gobies had their heads turn from a pale greyish yellow to a bright yellow within maybe thirty seconds. Also, their eyes seemed to get bigger, though I think it's surely the coloring around their eyes just got darker. They also started holding their pectoral fins straight down like a display. Up until then, I had never even seen those fins. I couldn't quite ascertain if the two "yellow" ones were "fighting" with each other or trying to scare away or show off for the third one who didn't undergo any of these changes. I'm wondering if anyone here has this same fish, and can tell me what they're doing. I'm assuming it's related to mating, but don't even know if these are bred in captivity or not. Any help will be greatly appreciated. Thanks!