I am new to Bettas since I was asked to take a newly acquired Betta for the winter as he was not being heated and then the store owner where he was kept decided to turn shop's heat off at night. When they saw how well is being cared for, he was given to me for keeps! Anyway, he is still in his upgraded temporary 1 gal. I am doing a widow placement for supplemented natural light also. I now have a Fluval 5 gal,(got first) Fluval 2 gal side by side on one windowsill. A Marineland 2.5 gal and his bowl on other windowsill. All live planted. Working on my plan.