Hi all, Have been visisting the forum for the past five years but never really posted, but did read a lot and learned from the members on here (and still is). Thought maybe it is time that I posted some details of my "work in progress". Initially I was going to wait until the system is "right" or in my eyes at least "good" but have realised the day I am satisfied may never come so might as well post what I have and see what advice can be obtained. Hardest lesson learnt to date: "calibrate your refractometer regularly". If it is not properly calibrated the standard solution of water changes when you are unsure what exactly the problem is just makes things worse, especially for sps (a reading of 1.025 was actually 1.016!), the more I changed the water the worse things became. Second lesson: don't panic and overreact! Photo of my old system which ran for about four years in Kimberly untill 2011 (with some nice Mojano's which started off as one..... third lesson): "Tank" for 16 months since moving to Cape Town before settling in a permanent residence again, an oshtridge drinking bowl (mainly to keep the clam I had almost since starting in the hobby). Photo just after moving it for the final time. Further below new tank stand and glass. Will post some further details later.