Thanks everyone for replying to this thread. Firstly, I can't get the snails as suggested to eat remaining food in the 2 gallon, I just scoop it out. I have moved the fry into the 2 gallon tank and I am doing daily partial water changes to the water. I have bought a ten gallon tank also (this hobby costs a lot of money

!) I have also bought ammonia, Ph, nitrite and nitrate water tests and do them daily on the 23 gallon tank and the 2 gallon tank.
I use Safestart (almost like Cycle) and declorinator when doing the water changes. The readings are always the same ammonia 0.25mg/l, nitrites <0.3 mg/l (vertually zero!!) and the nitrates are 12.5 mg/l.
I was wondering how I was getting Nitrate readings without nitrites and tested my tapwater with the Safestart added and picked up this nitrate reading, I presume from the safestart is this a bonus for me??
I know I am delaying the cycling of the tank by not letting the ammonia levels rise but the fish are alive thats the main thing.
I have started to fishless cycle the 10 gallon today after finding it virtually impossible to get pure ammonia around here, I finally did

I have decided to do this than just add the fry to it as for my own peace of mind instead of letting the tank adjust to the fry as they grow. After adding the ammonia I did water tests after it filtered through the tank a bit. The ammonia was 5.0mg/l, PH 8, Nitrites zero and nitrates between 12.5 and 25 mg/l. I presume this is a combination of my tap water and the Cycle.
The fry are 3 weeks old today yippee!! No fatalities yet. Even the little disabled fry is still alive but not at all thriving and can't swim, he just drags himself around the base of the tank

My plan is to move the fry into the 10 gallon once it has fully cycled and once they grow out, my LFS has agreed to take them off me, move the two adult swordtails into the 10 gallon and then start fishless cycle the 23 gallon. yep, the female
Swordtail fish is pregnant again

due next week but I'll worry about that when they come, I'll just have to do a juggling act until the two main tanks are fully cycled.
I think I have come on a lot in the last 3 weeks (my first 3 weeks as an aquarist) If anybody feels I am doing something wrong,can they please guide me??