Q.staghorn ferns
Why are the fronds on my staghorn fern turning dry and brown. These ferns are outside in a pool cage. I have had them for years, one is 6 ft. across and 4 ft. top to bottom. I water them every other day with my orchids. I live in southwest Florida, so I think the climate would be ok.
Thanks,
DAVE UCKOTTER

It is normal for the flat leaves to turn brown and papery with age.
It is best to water as needed, not on a schedule.
This article will help refresh you on the care requirements.
https://www.gardeningknowhow.com/ornamental/foliage/staghorn-fern/staghorn-fern-information.htm