Yeah, the light was pretty cool. The golden hours, is usually how I have heard it referred to. I remember reading something from the late Galen Rowel to the effect of "I don't photograph things, I photograh light. Give me great light and I'll give you a great photograph".
Yeah, the last one is a tad hot. That even with the exp comp dialed down to -2 stops. I could probably tweak it some in the RAW file. It looked more accurate (still a little hot though) on my home monitor. It looks more blown and all the colors a little desaturated (on the first two) here on my work computer.
Thanks for the compliment on the tank. HAd a bad crash (temp) a while ago and some pieces took a beating. All in all it is doing well though. Could do with a little less algae and would like to see a few pieces re-establish themselves after the crash. It's a 75, I have a 120 to move it too. Need to get drilling that tank and spruce up the stand so I can swap it over!!