How large of a scud culture to feed 6 pea puffers
I'm going to be getting 6 pea puffers that I'll keep in a 20 long. My current food plan is to co-culture scuds and bladder snails as their exclusive food source, and keep frozen bloodworms in the freezer as backup in case the cultures fail.
I currently have two one gallon jars that I have scuds and bladder snails breeding in, but does anyone have experience doing this or suggestions on how many gallons of culture I would need to keep to feed 6 pea puffers? Googling suggests 3-5 scuds per puffer per day, but I'm not sure how that translates to culture tank size in practice for long term sustainability.