Miracle Fruit leaves brown on edges. Can I clip them?

I've been growing two miracle fruit plants since they were little saplings. They're still growing and new leaves are forming, but a few have brown tips. Should I clip the brown tips off? Should I clip the whole leaf? I currently have them in pots with sphagnum moss and pine bark, water them regularly, and... show more I've been growing two miracle fruit plants since they were little saplings. They're still growing and new leaves are forming, but a few have brown tips. Should I clip the brown tips off? Should I clip the whole leaf? I currently have them in pots with sphagnum moss and pine bark, water them regularly, and spray them every day. Every other saturday, I apply a drop of Dyna-Gro 7-9-5 from a pipette when watering them. Any and all info is welcome.

Image attached is the best shot of the browning I have.
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