This is from my own experience using bowls for my bettas at first. I never had heaters or filters for the bowls, but I would clean them every other day. They were about 1 gallon each and had a large surface area for the most part. I was mostly having them in bowls because I believed that my parents didn't want cords and tanks everywhere in the house and that I couldn't care for them myself. I continued to have them in bowls until I designed our birds room into our "pet room" making it suitable to have a large tank and 2 smaller tanks. I moved the females into the large tank and put one of each of the males into the 2.5 tanks. For me, I never really saw a difference in their happiness. They were just as active as they were in the bowls. I do still have one that lives in a bowl, but this rare case is because he likes his bowl. I did try having him in a tank but he was not happy. He got upset at the filter, he couldn't find his snail friend Snelly, and he was just down right frustrated. If you feel they are happy in the bowls and you have given them the most care you can provide at this time, I say the bowls are okay. I would suggest adding a live plant to give them a bit more natural feel. I have Anubias on rocks for all my boys and they love laying on the large leaves. I know others will disagree with me about bowls, but in the end, it is your choice.
Just an artist/designer suggestion, I would swap the white tank with the blue bowl on the bottom shelf. That way you have alternating colors and add a bit of difference to the shelves.
Just an artist/designer suggestion, I would swap the white tank with the blue bowl on the bottom shelf. That way you have alternating colors and add a bit of difference to the shelves.
