mixing tangs in tank

Your tank is big enough, I would just add it last after you've had the tank up and running for a while.

I would stay away from other Acanthurus tangs, at least some of the more aggressive ones like a Sohal or a Clown.
 
I should not say this out loud but in my 420gal i have...
Vlamigin
Blue spine unicorn
Orange shoulder
malucipes
Scopas
Fowleri
Regal
Barinne
lutenant
Mata
Dussumari
They get along fine for over 3 years but you just cant drop them in with the lights on.
 
are you even planning to have a solid QT regimen? seeing that you're just wanting to dump all the fish in at once?

the achilles will just wipe your livestock in half in no time once it shows ich.

the fish is certainly not easy. just pull up the Achilles Primer thread.. the success rate on this fish is VERY LOW and definitely not for a beginner.

i know 3 local guys that had almost their entire livestock wiped out after adding an achilles.
 
I pretty much have the same size tank as you and I added all of the following at once - 2 yellows (one large, one small), a purple, desjardini, achilles, powder blue, and hippo.

Here was the pecking order....zebrasomas - desjardini (alpha to all fish), small yellow, small purple, large yellow. The powder blue was alpha to the achilles. The PB would occasionally instigate trouble towards the achilles, the achilles would flare its fins and just swim away. The PB never inflicted damage to the achilles. The hippo at 6" and was just happy go lucky.

It only worked for 2 months because then I ran into ich troubles stemming from my hippo tang. I QT'd all my new fish except the existing ones (YT and hippo) and forgot the hippo had broken out with a mild case a couple of years prior (never treated at the time).

I'm freshwater now, and I plan on adding the following once the tank is ready: fowler's, achilles, desjardini, hippo and a purple or yellow (don't have either yet). I love PB tangs, but am hesitant to get another one. It seemed to work well the last time, but you never know with individual specimens. Having 8' really helps if the subordinate fish can just swim away.

Please dont add all those to a FW tank... they wont last very long. :D
 
Yeah, when I reread that I wondered when someone would point that out.

The system has been running with RODI water for three weeks. I just need to do a big water change to suck out as much gunk as possible, then add salt and start cycling.
 
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