Great video ,if anyone is interested i sell organic Guava leaves for these tanks www.ebay.co.uk/itm/142144838407?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1555.l2649
Take off that poor Betta from that tiny dath box. they needs space like any other fish,they needs space to swim like any other fish to live well. the fact that they can live in a little water is fake
They can absolutely survive in "small" spaces. A nano 30 is absolutely fine, tho almost the minimum desired amount of water, as long as you provide them with enough plants without bothering their movements. And obviously this Betta has a much larger tank - with beautiful natural decoration if I might add - than the little plastic cups and fancy looking glass bowls they are sold in in stores. Furthermore, you need to check your spelling or slap yourself with a dictionary. G'day.
not all tanks have co2 injection. With lights like that, this tank could have no co2 at all and be fine. Sure there wouldn't be as much growth but it could live.