Hello so I am interested in starting an octopus tank. I wanted to know what size I should get I am thinking about getting an O. Vulgaris. Also what I might need and where to get an octopus. I am open to looking into other octopus but just need help with finding one and all I need. Any advice for a first time owner? I live in Los Angeles, California and want to start one ASAP! If anyone can help me with filters and what else to get it would be greatly appreciated thank you!