So I set up a plant-only bucket for some extra plants I have. I thought they might need some water movement, so I added my airstone. The airstone is attached to my sponge filter. So I thought, will live plants sustain a cycle? I have like 3 MTS in the sand with them that I'm sure will eventually reproduce, but I can't imagine they create much ammonia and I know the plants will also absorb any ammonia they create. Just wondering if the sponge will be cycled in a tank with only plants and a few snails, or if no bacteria will grow on it.