How fast does frogspawn grow?

[Reef Breeders]

Just got 2 heads of frogspawn and wanted to know how long it takes to get a new head fully grown.

 

[VelasCorals]

Mine grows very slow for some reason. I start with 2 heads and only have 4 now afer a year!

 

[Andy Nguyen]

Mine grows very slow for some reason. I start with 2 heads and only have 4 now afer a year!

really ?! My frog spawn grows very fast!
I just sold about 80 heads. Mine grow too fast!
I sold them cause i dont like them. haha
i needed to get rid of them!!

 

[DallasJohn210]

Mine was 3" 6 months ago. 9" now at least. Just moved my Duncan that only grew from 3" to 5" in same time,