What should I add to the tank?

[gone fishin]

It may be difficult with the six line in there. They can be quite aggressive once established. A blenny of some kind may work. Good luck

 

[airtime23]

Midas or bicolor blenny. Great personalities!

 

[Betta132]

People do tend to over-emphasize the tang tank size point, yes, but it needs over-emphasizing. Tangs need large tanks, it's as simple as that. You should not keep a yellow tang in a tank that size, it isn't good for the fish, and therefore people are going to tell you that you need to remove the tang. If you want them to stop, then simply remove the tang.

Scarlet skunk cleaner shrimp have nice long antennae and look cool, you could give one a try.
Hawkfish or two? There are several different species.
Look up assessors and see what you think of them.
Clown goby or two?

 

[gone fishin]

I believe the tang position has been made clear on both sides. Lets try to remember to have a bit of tact. Maybe we can get back to the Op's question. Just my 2 cents.

 

[JonasW]

I'll just ask questions like these on other forums. This isn't the "help" I expected from RC.
Ok to point it out once, but when people just wont stop I get tired.

Thanks to those who really tried to help me, I'll check your proposals.

Last post from me.

 

[DgenR8]

I'll just ask questions like these on other forums. This isn't the "help" I expected from RC.
Ok to point it out once, but when people just wont stop I get tired.

Thanks to those who really tried to help me, I'll check your proposals.

Last post from me.

You should consider looking at it from a different direction. When a large number of experienced people are saying the same thing, chances are good that what they're saying deserves some attention.
A lot of people come to RC and ask a question hoping for the answer they want to hear. When their first thread produces nothing but the answer they don't want, they'll start a new thread, often in another forum, and inevitably get that same advice. Some give in and heed the solid advice they've been given, others continue to seek the answer they want, even on other message boards.
If you keep asking, you will eventually find some idiot that will tell you that you can put a Bamboo shark in a 10 gallon tank with a Whisper filter and an air stone.
In the end, you bought the tank, there is no animal protection agency patrolling homes with fish tanks, so you will do what you want with it. That will never change the fact that people here did all they could for the welfare of the animal(s) in question.