If you are looking to flavour your Sea Moss Gel, here is a site that sells Freeze Dried Blueberry Fruit Powder...
https://www.mamakublue.co.nz
I put 4 Tablespoons of Blueberry powder in per 750ml Jar/Single pack of Sea Moss.  
If there is left over Gel I just put it in a glass with glad wrap over it and use that first.