Clowns won’t breed.

[ISpeakForTheSeas]

Well I did just put them in a bigger tank so I’ll wait a year and see but I really want baby clowns!!!

I've heard that environmental changes can really throw clowns off, and it can take them awhile to adjust and feel comfortable enough to breed. That said, though, from my understanding, I have to agree with Tamberav above - food and stress seem to be the big things for getting most fish to breed.

For feeding specifics and other random tips, see my quote below:

As I understand it, the main things are proper feeding (probably several times a day) and making sure there's nothing stressing the fish out. From there, you pretty much leave them alone and they spawn.

I don't know what you're feeding, but from what I've seen with others, I'd recommend trying LRS Fertility Frenzy, black worms, and NLS or TDO pellets (Otohime is a proven brand too, but it seems to have fallen out of favor somewhat in recent months/years) for the food. Adding enriched Rotifers and pods/BBS wouldn't hurt either - and you'll need to culture the rots for the baby clowns anyway. Fresh clams are pretty much always a good idea too. That said, the feeding doesn't have to be overly complex or expensive (Paul B fed clams and blackworms and had spawning), the above is just what I've seen work for a large number of people.

Beyond that, I've heard the following tips from at least one breeder (no guarantees these would work for/help you, but it's what I've heard from a couple of confirmed breeders): clowns like dirtier water, a 14 hour light period, slightly lower salinity (1.020), and a higher temp (80-82F).