Be prepared for that upgrade in a year. Min 120 will be needed.
LOLS i don't know whats wrong with my bichirs but they only seem to grow 2 inches a year!!! from my weeksi to albino!! i'm pretty sure my weeksi didn't grow since i got him which was half a year ago!!!
Take take good care of them though. Good temps, tank size, food and water perimetres. I just have bad luck or something!