There are many options. It really depends on the plants too.
Some plants can easily be passed through an H202 dip and rinsed off. Some can just be rinsed in tap water.
Plants like anubias can be passed through a diluted bleach solution.
Some plants can just be placed emersed and any potential pollutants to die off that way.
Can you be more specific on the types of plants you have?
Sometimes it may be just worth dumping them also and buying new.
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