Slightly urgent - Is this actually a thick lip gourami?

[Anonfish4]

I bought this one today, and while I believe it is a honey gourami, I'm having some doubts about it actually being a thick lip gourami. I don't see any pigmentation in the tail which is usually my number 1 indicator, but the employee who has his own fish and has been working in fish stores for years says it's a sunset honey, and usually they colour up after a little bit. I'm not just sure, and almost the entire back half has no pigmentation, which is something that their last honey gourami batch had that I also noticed, but everyone on here said they were honeys.
This thing really looks like a thicklip to me.

is there anyway to tell which it is based just on how pale it is? If it is a thick lip should I go ahead and rehome it or return it? I've got a close eye on it and if anything happens I'll go ahead, scoop it out, and bring it back in for a full refund.

 

[Hellfishguy]

It’s a thicklip. “Sunset Honey Gourami” , is just another trade name for selectively bred gold or red Trichogaster labiosa. They’re actually a pretty mellow species, but they can grow to be twice the size of true Honey Gouramis. The fish in the background appears to be a true honey, though.

 

[Anonfish4]

It’s a thicklip. “Sunset Honey Gourami” , is just another trade name for selectively bred gold or red Trichogaster labiosa. They’re actually a pretty mellow species, but they can grow to be twice the size of true Honey Gouramis. The fish in the background appears to be a true honey, though.

The one in the back is my own honey gourami. Will I need to worry about the thicklip becoming aggressive towards my honey? That's always something I hear about, and the two appear to be mostly avoiding each other. I figure I'll probably end up returning it at some point.

Will it be peaceful towards my other fish (tetras, cories, and snails)? I've been watching it, and I figure I'll give it one shot at being nice before I return it when I can.

 

[Hellfishguy]

I’d wait and see. Gouramis have individual personalities.

What size tank are they in?

 

[Anonfish4]

I’d wait and see. Gouramis have individual personalities.

What size tank are they in?

They're in a 29 gal. I figured I'd wait it out and see what happens. If not return it, I do feel bad that they won't have the company of their own species, but I also don't want to over crowd the tank.

 

[Anonfish4]

I keep telling myself not to get attached to this guy in case I have to return him/her but this is the most personable fish in my community tank lol. Not at all shy and man I'm just slightly attached. Honestly now I hope everything works out