you wont be able to raise fry in the fuge,netting wont keep the rotifers in,plus you need NO flow where the fry are just an air line with 2 bubbles/second bubbling.I am raising fry now and have a thread going with photo's,have a look,it will give you another option with a bucket in the fuge,that will work!.
Clownfish pairs are expensive because it can take a long time to pair,they go through the dominant phase,twitching phase,hosting phase,cleaning phase and then maybe hatching.Just because they are paired doesn't mean they will lay a clutch.
Old Chinese proverb:
Don't go to bed with ichy bum
wake up with smelly finger!!