You do have problems with your stocking I'm afraid.
Fish Tank Species
x2 Powder Blue Dwarf Gouramis
x1 Neon Dwarf Gourami
If these are all males, one will decide the tank is his and they will end up fighting.
x1 Yoyo Loach
Shoaling fish which needs a group of at least 6
x1 Kuhli Loach
Another shoaling fish which do better with more than 6.
x1 Bolivian Ram/Butterfly
This is OK
x1 Male Bristlenose Pleco
This is OK
x1 Angelfish
Angels are really shoaling fish though a bonded pair can be kept. The tank is only just tall enough for angels - they need 45 cm water depth. And keeping angelfish with gouramis is not advisable as they are both territorial fish which occupy the same area of the tank.
x1 Swordtail
This is a hard water fish and all your other fish are soft water fish.
When researching fish we need to be aware of how reliable the source in information is. Anyone can set up a website or a YouTube channel with no real knowledge whatsoever. The best website out there is Seriously Fish, and although there are some inaccuracies it is the best general fish website.
www.seriouslyfish.com
Specialist websites include Loaches Online
www.loaches.com
www.loaches.com
and Planet Catfish
Images are copyright and may not be reproduced without permission of the copyright holder.
www.planetcatfish.com