All of the hybrids are fry, but they all seem to get along just fine, and I guess I will get rid of the yellows...

Thanks !
You'll just have better luck if you can cater to the specific needs of one or the other. You can also build a bigger group of the chismulae to give them a better chance at long term success.
Don't be too upset about the yellows, they're always available in the club if you decide you want them in the future. I don't know of anyone breeding the clown labs, so it would be cool to see them show up in the club.
Prove to your parents you can take really good care of two tanks, then maybe you can get 3 and add another species or two, thats when MTS sets in.
I only had one tank until after college, and it was a 20g, so you're already ahead of the curve compared to where most of us started. Get really good with the basics, and you'll be breeding really cool fish before you know it.