He looks real excited about his hat!
I use the Red Sea standard salt on both tanks apart from about 12 months (when I used the Pro on the S650) that’s all I’ve ever used.Shaun what kind of salt are you using and what’s the WC schedule?
You have me thinking as I once didn’t change the water in the S650 for around 6 months, and it looked no different…….Yep, I don't do water changes. Once a year I will give the Sump a clean and that is the only time I do a water change. My ATO adds 38 liters of fresh water over every four or five days. I add the required Red Sea Colours AB & D ( don't need C) ICP tests every six months show everything is hunky dory.
No (or yes!)I agree completely with you, in my case in the large tank, I believe the rowalith w calcium reactor media releases various elements which were taken up by the original corals it’s made from back into the waterIt's that age old question, why do we do water changes? Is it to replace used up elements? If so, a 20% water change will only top them up by 20% ? It would need a 100% water change to move all elements back to 100%.
Fresh water goes in via the ATO, salt is salt and doesn't evaporate. Using a product like Red Sea Colours replaces any reduced elements. You hear time and time again that stability is key to running a successful aquarium, so why do a 10%/20% water change every week? That really doesn't promote stability.
It may not work for everyone, but it works for me.