Well, yes, but you'd have to be talking SUPER SMALL FISH and INVERTS. Think Trimma gobies and sexy shrimp small. And let's face it, what doesn't eat those?

For the record, I've kept them with all manner of Lystmata shrimps and blennies without issue (6-8" individual).

I really wish this fish wasn't so overlooked due to its status as a "grouper". It's a fantastic reef fish.

A 65g is way to small for any tang or rabbitfish (even a small one) so scrap that idea. Pick one type of clownfish and stick with that as different types will fight and try to kill each other.

There are lots of nice colourful fairy wrasses that you could look into. If you're willing to take a risk with your coral a dwarf angelfish can be a beautiful addition. Tail spot blenny's are awesome fish and once they settle into your tank they are often out in the open were you can see them.

Anthias can get pretty big and are fairly tricky/finicky fish. Ideally you want 5-7 females to one male or just keep only one anthia. Also most people think of them as fairly peaceful fish but in reality most anthias are really mean/aggressive towards other fish. My 2" tiara anthia has gone after my 3-4" yellow tang, and he killed a fairy wrasse.

If you want schooling fish I'd stick to chromis or cardinals.

Hey Albert, you attracted my attention for wrasses group. How many you think would be suitable for 65g tank?
So thinking of:
1. Yellowtail Damsel (have it)
2. Firefish (have it)
3. Group of wrasses
4. Blenny more likely Tailspot as it is barebottom
5. Pair of Tomato clowns
6. Show fish type of tang or other.

Chromis... don't... school.

(in reef tanks).

They are a cool fish but they are shy and they hide a lot of the time. Also a 65g is to small of a tank for a marine betta

Totally agree about Tang in 65g tank. It is my type of color/shape/behaviour fish for show fish :) so would be tang until I find something :)

Varies from fish to fish. I've had both shy guys and bar stars (well, the marine betta equivalents), lol.

Trio? Foursome? Quintet? Whatever's within your means and availability. They have a pretty marginal impact on bioload. Keep in mind that it is one male per species to each tank though.

The rest of your list looks fine.

I do not agree with this statement. Kole tangs and doliatus rabbits are perfectly content in a 65 as long as you don't have a rock wall taking up all the space.

Do I have to insert the whole group together or I can do it in stages?

The rabbit needs a minimum 100 gallon. see comment

http://reefkeeping.com/issues/2008-12/fish/index.php

The powder blue is completely out of the question. Kole tangs kinda hang around rather than swim and are doable in a smaller tank but there are tons of smaller fish more suitable for your tank.
With wrasse you need a top for your tank or they will jump

Why is that author's generalized commentary more valid than my observation?