Hello,
I have a 50 gal tank full of SPS that works since 7 years. Until two years ago it has always been good with a great growing rate and beatiful colours, but in the last two years it doesn't go how it should be: low or zero growth, some cyanobacter spot and sometimes some regression of the tissue at the base. Instead SPS colors are ok and all chemical measurement are perfect (PO4, NO3, Mg, Ca, Kh, NH4, Si). I must confess in fact that in the last year, I gradually changed my way to perform water changes: due to lack of time for my job and the need of putting all the salt together in the water (Marine Environement salt) and having a smaller container (60lt instead of 90lt), i used to put in the sump mixed water with higher salinity because i thought that a 10lt change wouldn't have made a great damage. Could it be this the cause of all my problems? And i also wondewr if the RO water in replacement of eveporated water should be of the same temperature and poured into the sump slowly to avoid dameges deriving from different density.
By the way your article was great and of sure utility and it's sure that by now, all parameters of newly mixed water will be checked before putting it in the display tank.
Thank You.
I have a 50 gal tank full of SPS that works since 7 years. Until two years ago it has always been good with a great growing rate and beatiful colours, but in the last two years it doesn't go how it should be: low or zero growth, some cyanobacter spot and sometimes some regression of the tissue at the base. Instead SPS colors are ok and all chemical measurement are perfect (PO4, NO3, Mg, Ca, Kh, NH4, Si). I must confess in fact that in the last year, I gradually changed my way to perform water changes: due to lack of time for my job and the need of putting all the salt together in the water (Marine Environement salt) and having a smaller container (60lt instead of 90lt), i used to put in the sump mixed water with higher salinity because i thought that a 10lt change wouldn't have made a great damage. Could it be this the cause of all my problems? And i also wondewr if the RO water in replacement of eveporated water should be of the same temperature and poured into the sump slowly to avoid dameges deriving from different density.
By the way your article was great and of sure utility and it's sure that by now, all parameters of newly mixed water will be checked before putting it in the display tank.
Thank You.