Highfin blenny lifespan

I know theere is np exacy way of knowing, but for an estimate, how long would it take for a1-2 inch highfin to grow to a 5.7 inch?
Probly a while lol

 

I mean, maybe a couple years or little less then that..Just really depends on what you are feeding them..High protien foods is better then just flake or pellet. so feed like mysis,brine etc..Meaty foods will increase growth rate. But its not like coral where you target feed some acans and they spit out a head once every week(for me atleast )

 

Yeah right now alternating enriched mysis and enriched pellet food every other day
Thanks a ton

 

can't speak for that particular blenny, but as a very very general rule, most saltwater fish will grow to full size within a year or two. If that. And they will live 10-20 years. Some of the smaller fish, such as gobbles and blennies, may be on the lower side of those estimates.