Lined Seahorse Female Dying Please Help


Reefing newb
I have a 50 USG Extra tall Seahorse tank with 1 Alligator Pipefish and a pair of Lined Seahorses. I got the pair of Lined Seahorses about 3 weeks ago and ever since i got them the male will eat the frozen mysis and live brine i feed but the female will eat nothing so far! She has been pretty much either laying on the bottom of the tank with he tail wrapped around a tree sponge or gorgonian, or she will hang upside down from the intake or thermometer probe... I do not enjoy watching her stave to death... please can someone help?
There are several additives you can put on foods that will entice a finicky eater. Get a couple and try them. Maybe isolate the male so she has more opportunities to eat?