Ching,
I am still reading this thread but wanted to pass on this information about your ventralis anthias. I've seen where you have had trouble with keeping them and the one thing I wanted to pass on was about the pressure of the water these fish live in. Earlier someone had stated they live in 90-120 meters. Every 10 meters of water adds another atomsphere of pressure to the water. So to sum it up they come from around 150 lbs of pressure per square inch and in your tank they have only 15 lbs per square inch. I have no idea if this is a factor but that is a lot of difference they have to deal with.
Joe
It shouldn't matter the pressure on fish if they are brought up correctly... fish caught at 300-500 feet do fine when decompressed properly. Ventralis are actually caught below 60-70 m usually. But they are very finicky fish to begin with, and it takes a lot of time and effort to bring them up to the surface. You can't pin them because they are too small and fragile.
Ching,
I finally finished the entire thread now I'm ready for the grand tour. I do have to agree with everyone that the tank looks a lot better with more open sand on the bottom. I'm an engineer and this is definitely one very well engineered project. I do have one suggestion and that is to put up a picture of the room before you started to clean it out, then when you start to feel depressed over losing a fish look at the picture and then look at what you created. It truely is a masterpiece.
Joe
Congrats Ching on making the cover of Reef Hobbyist Magazine.
http://www.youtube.com/watch?v=JCsVxPD0kxY
I hope you dont mind me posting this video. What are the name of the fish with the blue eyes at the :35 mark in the video? Are they some type of anthias. And also what is the fish that looks like a longer version of the Gem Tang. It looks like its in the Acanthurus family?
They are Japanese Angelfish (Centropyge interrupta).:thumbsup::thumbsup::thumbsup: top tank m8
What blue Angelfish is that near the end of the vid.