moving up to two pinkies

was wondering when you guys think is an appropriate time to move up to two pinkies! i got jasper about 2 months ago and he’s now 19inches, and there is not a very noticeable bump after he feeds. should i go for two next feeding?

I always prefer to go by weight. Do you have a kitchen gram scale you could use to weigh him? You can also eyeball the size - a good feeder size should be about 1 to 1.5 times as wide as his belly. Personally, I prefer to skip double pinkies and go to peach fuzzies when they're around 15 grams. Pinkies don't have much nutrition and two of my pinkies end up being larger than one peach fuzzie.

I do it by weight as well.
I will do double pinks if I am out of small fuzzies, but I have found the transition is easier for them going from large pinkies to small fuzzies.