I only call him a baby because he is next to my others sorry, I have 2 adult females and a 6 year old male in a 100g tank, and the 40g is a QT with 4 hiding spots and plenty cover, mainly vines with leaves, he's not super small like i said he's heavy, he's thick enough for the hoppers and he eats until he doesn't want any, I plan on keeping him alone till his year and a half mark in about 5 months i believe I'll have to check my notes to be exact, and as far as plants being not a good idea i have a couple ferns with the adults and orchids, helps with the oxygen content of the tank, and provides a good ecosystem but that tank is easy to maintain the plants are potted i plan on making the substrate the soil for the plants, thanks for the advice but I'm looking for vivarium tips mostly, thank you though