My 1.5 gallon tank

[Twonvito]

I have a small 1.5 gallon tank. I recently added a small portion of Christmas moss, and one piece of hornwort, and a betta male. Since adding the hornwort first it multiple by 3 without lighting and my tank is now promoting green algae.

 

[GamerChick5567]

Looking good! I have a few old 3 gallon tanks sitting there, I really should fill them up haha.