i was wondering if i can grow and breed both guppies and shrimp without guppies eating small shrimp fries, i am trying to do this mainly to feed my future puffer fish.
Guppies are real tiny monsters!
If it moves they'll try to eat it.
I throw some bloodworms in their tank after feeding them to my puffer.
They'll try to eat worms bigger then then.
I breed snails in my guppybreeder for my puffer, that works fine!
If you have a tank with some very dense areas of planting (mosses and dense stem plants) you should be able to have a sustainable colony of shrimp, though it would not be as plentiful as it would be in an invert only tank.