I was wondering when I could feed gel food I was planning to make a protein mix with tuna, soy, and peas

id start feeding them that when theyre around 1cm big, or at the 2-3 month stage. something like that. when theyre a decent size but if you mix it up into a very fine paste you can suppliment their diet with it from the start. variety is the spice of life an easier way of getting paste is getting a jar of baby food. ready made fry dinner!