Hello And Goodbye

On Friday night while inspecting the tank I noticed 2 more snails, so now I have a total of 3 snails in the tank. Two of them seem to be hanging around the thermometer (which currently reads 26 degrees Celsius). I have turned up the temperature to help the acceleration of the bacteria that is needed to keep that tank running smoothly.

I have had to remove the Fittonia 'Superba Red' and the Dracaena sanderiana (Red Striped Dragon Plant) tonight as both plants were starting to decay already. The leaves from the Fittonia 'Superba Red' had decayed from the stem and were floating around the tank. I had also noticed an abundance of red worms in the water (introduced from the Cabomba aquatica (Green Cabomba, Giant Cabomba)) and they were attacking the Dracaena sanderiana (Red Striped Dragon Plant), eating the decaying parts. 

I am a bit worried about the red worms as all my internet searching for the last 3 hours has not turned up much, so I have posted a question on a forum to see if I can get any answers. I am hoping that they will not be a fish parasite of some sort, but rather fish food.