Hi and welcome to the forum!! Thanks for stalking us :P


Your current tank 12x12x18 for us Americans is small even for 1 red. I know you mentioned upgrading them, but I have to point it out sorry. They really should be in a 24in (60ish cm) tall tank minimum, 36in (90ish cm) if possible. Waiting until they get bigger isn't a good option, but I do understand wanting to upgrade and being able to afford to upgrade. That being said

Sharing a pick of your tank would be very beneficial. As well as the current temp and humidity of their enclosure.

Maybe you could buy a new tank and set that one up as a more natural setup and then move them into it It could be a new build!

Paul