so i have this blenny that is pretty skinny looking, im not sure if he looks normal or skinny but his tail end is like paper thin, there is plenty of algae in the tank for him to munch on i have a 13.5 gal tank and as he gets bigger i plan to move him into a 32 gal then a 90 but as of now, should i feed him other things like peas, not sure if it matters but water parameters are the same as my other posts same goes for salinity and temperature, i could be overthinking it but does he look okay?