Hello everyone. I have a 20g long that currently just houses 6 guppies that will be moving to my 75 gallon once I'm done with it. After the move I would like to try my first set of breeding projects. Either pygmy cories, kuhli loaches, honey gouramis or even neon blue eyed rainbowfish. I wanted to know if a sponge filter or hob is better for breeding projects like this. Any thoughts will be appreciated.