A 40 breeder does not really fit the criteria for a glass banger tank. I would agree with the post ^^^ Salvini would be a good choice for a while they
New guy here, been around fish and tanks for a long time(20 years). I only have 2 running at the moment a 120gl with my 13" Oscar and 6 3" silver
Yeah, WOW those are great looking fish and awesome shots. That's a great camera. I paid up for a shock proof, water proof Panasonic Lumix a few years
I would run the filter for it on your main tank and break the set up done. Easy job to set it back up when needed and move the filter back over.
Man that sounds like a lot of lady bettas for a 20 long. I've got 4 in my 55. Had one in there, then added 3 more when I happened upon them on sale