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I have used these for years in qt tanks and have never had any problems with them, until recently.
I used two new badges on a newly set up qt and they both showed grey. I added fish and after a few days they both stayed grey. I purchased two new ones from different vendors, same result, grey badges.
Has anyone else had this happen? Did these badges change?
I used two new badges on a newly set up qt and they both showed grey. I added fish and after a few days they both stayed grey. I purchased two new ones from different vendors, same result, grey badges.
Has anyone else had this happen? Did these badges change?


