chemical control

I did a water change and for some reason mag, calcium and alkalinity are a little bit low (not by much but would still like to get it in range) and I have the seachem buffers for all of them but I don’t know if adding them all at the same time would be okay. Also we’re setting up an ATO and are...

SO - somehow - no clue how - I ended up with some aiptasia anemones. I just tried to kill them with 'removal' - and a month later - I had 50. They weren't spreading - and I personally don't mind them - they didnt seem to hurt anything - when it increased to more than that - I thought - hmmm...