Seahorse are saltwater fish that eat only live copepods, or freshly hatched brine shrimp, use 1 gallon and up fish tanks size place either fake plants or gorgonian coral try to make it a seahorse only tank so they are not out competed for food resources or getting eaten by other critters avoid any other corals because they could sting and harm the seahorses. Shipping will be 55.99 ups air so gets to u next day so that the sea horses aren't on shipping long to avoid casualties aka death. Please before purchasing have your tank cycled at least 2 weeks in advanced and have live copepods or hatchling brine shrimp ready for them to eat and turn off tank lights while floating bag 3 hours for correct temperature in your tank u placing them in, then open bag and dip it in tank so tank water is mixed in bag wait 15 min then remove them from bag in your tank and enjoy life. Or if you locally in Stevensville, Montana 59870 then I can deliver in person then u won't have to pay for shipping. Please do research on seahorses before purchasing so u give them the proper care, I raise them in my tanks and care to know they going to a knowledgeable and caring person. Ps these guys are like chameleons so they try to change color to blendin so use bright colored decor to veiw them better cause they can't change colors that is not normally seen in nature. No refunds!! All sales final no knowledge of seahorse care in tank will cost u money and of course the life of your seahorse or seahorses so please don't order if your not ready to care for them. Other than that please have a nice day and many more. Purchase price is $69.99usd for 1 seahorse Shipping is 59.99 anywhere in the United States will not ship out of country!!!! Only use sponge filters don't use powerhead filters or other filters that will suck them up and please don't use wave makers keep water 72 to 75 to be in the safe zone on temperature in your tank, salinenty gravity levels of 1.020 between 1.025 ph levels of 8.0 to 8.4