I currently have a 40g reef tank with live rock, corals, a snowflake eel, and the cleaning crew (temporary 'cuz they get eaten). I have a fascination with predator tanks, I used to do flowerhorn and south american cichlid tanks and would like to try to pull of a 40g reed predator tank. I will be upgrading somewhere around 55-70 gallons but I am not sure when. I am interested in anglers, wrasses, eels, sharks, octopuses, mini rays, everything in between and would like to know what I can fit in this tank. If you know some types that can fit in my tank or better yet you have a 40g or under predator tank I would love to here your 2 cents, thank you! (I am not a million air so plz try to keep the fish under $50!)