Caveat emptor: I don't know which kind of epi you have. I am assuming
it is somewhat the same as my Epi "Ballerina".

(Ted Byers) writes:
Now for the question. How do they compare with the dendrobiums in
terms of habit and care? Are they deciduous or evergreen? Do they

Evergreen if they are similar to mine.

need a rest periodically, like my nobile type dendrobiums, or will

Mine don't.

Mine will be happy with 1000 lux, and are described as similar to a
phal in culture needs. They now get 15klux without making a fuss. They
are very good growers, and can take low temperatures. The medium
doesn't seem to be very important - my three keikis are potted in SH
culture, and seem perfectly happy where they are. The flowers will
attract bugs in quantities, including pests.

When mine are unhappy, the leaves go limp and thin. They have a
tendency to produce keikis if you need to cut the flower stalks for
some reason, like pests having a feast.

The roots are 2.5-3mm thick, and grow in abundance. I didn't leave
enough room for root growth last year, I know that.

Their growth is high, especially with the flower stems. You should
make arrangements for something to support the stems, like a cut-off
support you can replace with the real thing. I haven't, and things are
starting to get interesting when watering-time comes. The big one is
how in excess of 80cms high from floor to flower. It was half that
when I bought it. I hope it has reached its maximum height now.

In short: I have found it very easy to make my specific hybrid happy.

Good luck.

Geir