2.7 Gallon Pico

[Beano1169]

Day 23 and all is well temp as come down since we are getting colder in Calgary! Parametes are all perfect! diatoms are starting in abundence! one question has come across my mind though, I modded my Ac 30 into a makeshift fuge not glued or anything. I got some strange plant for the back of it and found out that it was feather caulerpa. Should I continue to use this for my fuge or should I get soemthing less invasive, from what I have been reading is that it can take over your tank quite fast ? any ideas?