looking for browned out Acro's to feed

[sea horse]

I am looking to buy browed out/cheep coral to feed file fish. Would have thought it easy to find, but it's been a major challenge. But they only eat acro's, for about the first 6 to 12 months, until they can be weened on to frozen. I have a 50 gal. species tank up and running for about 9 months now. Everything is ready for them... but a food supply. I need about 6to8 inches of Acro's a month to feed each one. I hate to buy nice frags to feed them, and the cost of nice frags is steep, to just use for fish food. All help welcome, thanks, Starr