Thanks Andrew it's something I have suspected for a long time but done nothing about, as it would mean a complete removal of all rock and a rescale with mostly new rock. I do run two litres of siporax so that would help with the transition.
I have put some carbon on this week to see if there was any toxins being released.
Thanks
http://www.reefcentral.com/forums/attachment.php?attachmentid=340427&stc=1&d=1453976830
I have put some carbon on this week to see if there was any toxins being released.
Thanks
http://www.reefcentral.com/forums/attachment.php?attachmentid=340427&stc=1&d=1453976830