1) You should expect about 100 babies or more, but the fact that you waited 1 week before catching them and putting them into a breeder tank, means that several of them have most likely been eaten, especially if u have got a catfish and many other cichlids because they eat them. So you should expect a lot less, say about 30.

2) If you didnt see any eggs, then there is a large possibility that one of your fish may be a livebearer. A livebearer is a fish that doesnt lay eggs but releases babies into the water. Thats why you didnt see any eggs or a nest. I dont think its got to do with your green terror.
I guess, the only way to work out who the parents are is to wait till they become bigger and match any characteristics up with the larger fish in your tank

3) Yes it is a great idea to put the babies into a new tank as they need to be away from fish that can easierly eat them. No your tank wont need cycling if you put in some rocks from your old tank and its also a good idea to put in a bowl of water from your old tank to your new one.

4) Well u should really take them out and put them in a new tank as soon as you can, as the baby fish are easily scared by the large fish around them.

Hope this helps

1. No one can possibly tell you how many to expect based on a couple factors. One is, no way to know what exactly you have in the tank so who knows who’s crossing with who, and the second thing is that when you have cross breeds going on, there’s no way to know how many of those fertilizations are going to be healthy and survive. It would be different if the case were a known single species that’s mating.

2. Answer 1 pretty much covers that really. You can’t tell again as you haven’t listed what all you have, and who are the males and females. It’s going to be a total guesswork on this one, but I can say, you shouldn’t try to keep any of them or sell them off into the hobby. An impure blood line being mated again down the road is a real bet to piss someone off. Someone could end up buying one of your hybrids at a store, thinking it’s a pure fish only to find the fry of that fish come out all mixed and messed up. Totally not cool there.

3. My advice, let nature take it’s course since these are hybrids. Let the adults use them as a food source.

4. I’d just let them loose to fend for themselves.

All in all, you have a very fine looking tank, but if I may, I’d start keeping only 1-2 species only, and keep either South Americans or Africans. Please don’t intermix these groups. Pick one or two of those species you really like the most, sell or trade off the rest, and focus on breeding a pure bloodline is my advice. I’ve got six different species of Africans breeding for me, and I have to say, keeping certain known species in the right ratio’s can make things so much easier.

It should be noted, there are no livebearing cichlids, South American, Central American nor African at all. They are either egg layers or mouthbrooders. Either way, I really think you shouldn’t keep or pass these fry on because there is no doubt these are all cross breeds by not having any known male and females of the same species.