I would switch over to RO/DI as soon as possible. You'd probably be okay with a FOWLR and maybe some leathers using tap, but you'll likely struggle with LPS and SPS. Many fish stores sell premixed salt water or RO/DI if you don't want to hook up your own machine. In the meantime, I would buy a poly-filter or order an ICP test to determine if you have any heavy metal contamination. Are you using any sort of water conditioner on top off water?No just tap water. Our city has really good water so our tech doesn’t deem it necessary. I’ve been dosing a bit of calcium/magnesium/strontium, but mainly the alkalinity
no clue what the phosphates are at. I’m going to bring water to the lfs to test tomorrow. Honestly I completely forgot that was a thing until today
this is true but my acrylic nails make using gloves even more difficult lol. Good to know about the Hanna checkers though. If the lfs will test the water for me I’ll probably just keep bringing some frequently until our tech comes over
You also need to determine what your alk is. I wouldn't recommend dosing without knowing exactly what it is before hand. I test mine almost every day to make sure I'm dosing the correct amount. Too high, too low, or too many swings can all cause problems.
Euphyllia like some phosphates. If you have zero'd them out, they could be starving.