I told my wife not long ago that when I started increasing frequency of partial water changes, I felt like our corals were responding positively. things like our bubble, frogspawn, BTA, and mushroom were opening up much larger than usual and I felt like my zoas were spreading/growing faster again. So I have tried minimal water changes with frequent top offs, I have tried using various reef foods sparingly, and I've tried them frequently. I've tinkered with my lights here and there, but the thing that seems to be giving my corals more life is the increased water changes.
I saw this yesterday and it immediately received a ton of attention:
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I think that there are trace nutrients I am not able to dose or test for easily that adding new salt water replaces. Maybe I'm removing some trace waste that is also irritating my corals, but its not anything coming up in my tests. (I've heard people talk about removing poisons that corals may release into the water though might be involved).
I am curious if people have a simple/standard method for water changes. Being that we have only a 40g, 10% is just 4g. I use a 1g bucket at the moment so that's basically manually emptying 4 times, then remixing 4 times. not a big deal, but I'm sure people have a better method especially when they're running 100g+ tanks.
Do you guys think brand of salt matters? Do you just throw in a measured scoop per gallon, mix it up and pour the mixed salt water in?
Do you guys ever buy pre mixed RO/DI water from your local LFS?
I have an LFS locally that sells it in 5g increments and I thought about picking his up for my office tank for simplicity sake but I wonder if the trace nutrient quality is the same.
I'm low on my Instant Ocean and curious if I should try a different brand for the DT at home...