The original tank was fully planted and unheated. Heating would have killed the plants so I had to move them to a new set up in big plastic tub with generic tropical climate (Cameroon - the country they're from - has average temps of about 25C so you were right there). I can't find any care sheets on these frogs, so I've kinda done a big eyed/peacock frog set up. They're so cute I don't think I'm gonna get rid of them, but definitely gonna have some words with this 'breeder'. Thanks for all your help diver!