hello! i'm fairly new to fishkeeping, have had my 20 gallon since early December and added fish around 3 weeks ago. I do often have questions about my fish (2 german blue rams and 8 otos) so I've been joining some forums. one of my rams has suddenly become aggressive after 3 weeks of peace so I am setting up a 10 gallon as well now. I am passionate about all fish (prehistoric and present) !