My Ding Dangs have not opened up in 2 weeks now. Everything else is the tank is doing great. I have other PE that are fine. Anything I can do to get them to open? I have not moved them either. They are half way up the tank and in good flow.
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Just wondering if for some reason you all have the same problem with PPE's and RPE's/ I have them and they still have color but they dont open. i have them in the shade right now, but all the other PE's I have are doing fine.

