Dwarf Or Pea pufferfish are little, expanding to just one inch in size. On the other hand, these carnivores are feisty and intense fish which will chase absent and perhaps destroy tank mates much bigger than them in territorial disputes. For that reason, we can’t endorse the Dwarf puffer fish https://pearlaquatics.my/product/proguard-pg3500-pg4500-pg5500-2-in-1-amphibious-water-pump-aquarium/