Well first you should take off the wool off the bottom of the ferns.
2nd make sure not to bury the rhizome.
Now as far as you trying to have the tank heavily planted just from those 4 ferns.. thats not really going to happen. One would have to wait a few years for them to be all over the tank.. Ferns are slow growers and dont really depend on co2. So your bubbling wont hinder its growth at all.
2nd make sure not to bury the rhizome.
Now as far as you trying to have the tank heavily planted just from those 4 ferns.. thats not really going to happen. One would have to wait a few years for them to be all over the tank.. Ferns are slow growers and dont really depend on co2. So your bubbling wont hinder its growth at all.