Hello! I am wondering if Electric Blue Rams and Marbled Hatchetfish are compatible. It seems like they are, as they inhabit different areas of the tank and are both from South America, but I'm wondering if anyone has housed these two together. Additionally, the Hatchetfish need at least 10 gallons, but since they like to be in groups would they need more? If anyone has housed these two together (successfully), then what tank size do you recommend?