Krill is another good food for FHs. Now here's what you want to know about yuor fish.
The strain of your FH is a ZZ = Zhen Zou
Sex : Female (80%) as you can see there's a black colour in her dorsal fin.
The Dragon tear makes the FH looks nice
Plums is solid and strait which is also nice
Pearls makes your FH expensive
How to take care of your ZZ:
You can do 30% water change every other day and 50% water change 2x a month. They love clean water and even straight from the faucet and no water conditioner needed. Put some rock/rable salt (NOT IODIZED) 0.11 Kilogram/US gallon. If you have a heater set it up to 85 - 88 deg F. Feed her with high protein pellets and like what I have said live feeds like feeders, shrimp, meal worms and blodworms is always been the best in the morning and high protein pellets in the afternoon.
After a month you can see drastic changes in her she'll grow like crazy. Her head will not be as huge as the others it's a hard kok and only a few females grow their koks.
Nice catch man