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Your swords and ferns will be fine, so will other hearty plants like apongee, crypts, anubis, mosses, grasses. What are you looking to do with your tank?
The type of lighting you have will determine what type of plants will grow sucessfully in your tank. Also do you dose any ferts and do you use root tabs on your swords? Swords are very heavy root feeders as are crypts and both benefit from substrate feeding. Plus if you have sand or gravel for your substrate you really need to use root tabs since those two substrates are inert.