You must keep the soil moist constantly, don't worry about root rot, the Sperm need water to move around, also if you plant two or more in close proximity you will have more leaf action as one Germophyte does not release sperm and Eggs at the same time.

Don't fertilize so often. Ferns need relatively little fertilizer, and prefer organic humus to liquid or pellet fertilizer. If you feel you must fertilize with commercial fertilizer, then find out if your ferns need alkaline or acid soil, and feed with the appropriate balance. If I remember correctly, ostrich ferns prefer slightly acid soil. But you'd do better with some compost.

Lainey