I have been reading up on keeping seahorses and safe tankmates and anything else I can find about the hobby, however alot of sources that I've read suggest species only tanks(besides shrimp and starfish). We would like to have tankmates to keep it interesting but I was curious to know what has been successful for other people and If we do plan on having tankmates, what size tank should we go with? We wanted to begin cycling a tank within the next 2 months or so.