I have been doing a lot of research on Carbolin 19. I am currently taking TRIBEX and HOT-ROX and they work very well together. I have read that Carbolin 19 and HOT-ROX share a common ingredient that might actually conflict with each other.
Carbolin 19 and Alpha Male is a recommended stack as mentioned before. Alpha Male is a potion combination of TRIBEX and RED KAT, so I don't see why you wouldn't be able to stack any of those with Carbolin 19.
I see Carlos is taking both Alpha Male and TRIBEX, I don't know if it will hurt him in any way except in the pocket book. They say if you're under the age of 30 you don't need to take Alpha Male or RED KAT. (For further reasons why, you can do a search on those two supplements) they say TRIBEX will give you the t-boost you need. I know a few people that are taking the Alpha Male (under the age of 30) and have had great results with it. They have done so well with it I have thought about dropping the TRIBEX and giving it a try my self. (The Carbolin 19 - Alpha Male stack)
I haven't tried the Flameout yet, but will be starting it towards the end of March. From what I have read it's not fish oil, but based off of the same idea with a much higher concentrate of the omega 3 fatty acids and CLA. You should be able to take Flameout with any of the supplements that Biotest sells.
For other supplement mixing you can do a search with the two supplements and I'm sure something will come up.
HOPE THIS HELPS.
((PLEASE KEEP IN MIND THAT I AM NO DOCTOR AND I AM NOT A NUTRITIONEST. ALL OF THE INFORMATION THAT I HAVE GIVEN I HAVE TAKEN FROM OTHER FORMS ON THIS SITE))