This isn’t a big deal, I don’t think, just more of a curiosity. I have noticed that several of my frag plugs are turning this weird rusty red color where they’re making contact with the glue & rocks. I’m using BSI Insta-Cure IC-Gel glue & it happens with all different types of frag plugs. The rocks are CaribSea LifeRock. Tank is 7 months old. I’ve noticed this on probably 5 or 6 frags that I’ve had to move for various reasons.
Anyone else ever experience this? Is it anything I should be concerned about?
Anyone else ever experience this? Is it anything I should be concerned about?