The video looks fine. You have some beautiful pairs there. But just a heads-up. Keep a careful watch on their interaction. If those Trimacs settle down to breed, they will make short work (i.e. annihilate) the other fish in that tank. They can be one of the nastiest, toughest of CA cichlid species IME. And then once they have the tank to themselves, there is a good chance the male Trimac will trash his female. Frankly, I wouldn't mix the CAs with the SAs. They have very different temperaments and requirements. Chocolates are very gentle in comparison to the Trimacs and can be easily stressed. They might coexist in a very big tank (180G+) with lots of structure, and several other target / dither fish but I wouldn't risk it. It will be just a matter of 'when' it will happen ... not 'if'.