They had a 55+ size tank (I don't remember the size but it was huge) it had a mix of live and fake plants, with tons of caves/rocks. It started out with the small fish and worked its way up until it killed everything in the tank. The last time I saw it, it was in the tank by its self and they wanted to get rid of it.
Feel free to message me any questions, I'll try to help the best I can!
Rummy- Mini Rex Rabbit
Diz jr- Betta
Yoshi- Crested Gecko