Certified GKH Gardening Expert
Epsom salt will only provide Sulfur and Magnesium to correct those specific deficiencies, and is not intended as a full fertilizer. You will want to follow all instructions on the packaging.
You will want to feed with an all purpose liquid fertilizer at half strength once per month during the active season.
This article will help: https://www.gardeningknowhow.com/houseplants/bromeliad/growing-bromeliad-plants.htm