Most ferns prefer partial light or shaded areas, though they do need at least some indirect light. Avoid exposure to direct sunlight, as this will burn the leaves and damage your fern.
Ferns like to be kept consistently moist with regular waterings, but not soggy. Allowing the soil to dry stresses these plants, but be sure to have a well-draining pot so the constant moisture does not cause root rot.
Ferns love high humidity - consider keeping yours in a bathroom or kitchen! If you do not have adequate space or light in these locations, be sure to mist your fern frequently or to keep a water tray filled with pebbles in close proximity to increase humidity. You can also use double containers (for example a terra cotta pot and a larger decorative pot) to help lock in the moisture.
Ferns prefer a temperature in the range of 65-75 degrees Fahrenheit. If it drops below 60 degrees, allow the top layer of soil to dry before watering.
Ferns are fairly light feeders. You can use a standard balanced N-P-K fertilizer, but use just once a month or every other month. Too much nitrogen is sometimes an issue for ferns, and can cause tip burn on the roots and leaves.
Yes, your Ferns are safe for your pets!
Staghorn ferns are unusual in that they are epiphytic like air plants, meaning they do not require soil to grow and naturally grow on other plants and trees. It can be mounted in unique ways in your home and be a beautiful decoration. To water, submerged the fern in water and then drain well.