How long?

  1. c

    charlie300 Initiate Member

    My tank has been running now for 3 months. All going well but just wondered how long until the rock turns to the interesting purple colour. I started my tank with completely dead/cleaned rock. Is this going to happen naturally or can I do something to speed up the process??
    Many thanks in advance
  2. Slug

    Slug Well Known Member Member

    Every tank is different with that believe it or not. Really no real gauge to give you. Could be a month, could be 6 months, could be hardly ever! Since switching LED fixtures I've had little to ZERO coraline growth in my tank. Really healthy tank, just no coraline at all.

    You will need to seed it in your tank. Either with a piece of Live Rock with it on there, or get the LFS/Reef friend to scrap some off and give you the scrapings. Adding it to your tank should start seeding it.