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If you trust the test kits, you might double check your refractometer to make sure you're not mixing at a higher salinity causing higher concentrations.
Bcavalli;1039599 wrote: I use the box as well. Do you mix an entire bag at one time? Or partial bags? I've read about instances with buckets and partial bags that the elements had settled at the bottom and given off the chart readings or the opposite as well.
outdrsyguy1;1039601 wrote: If you trust the test kits, you might double check your refractometer to make sure you're not mixing at a higher salinity causing higher concentrations.
Bcavalli;1039608 wrote: Why don't you just pickup a refractometer with ATC? Save yourself the headache and conversions. In the grand scheme of things it's a very small investment and worth every penny.
Russ-IV;1039610 wrote: i have one. but i do sanity checks with my hydrometer. I never go off one without the other to confirm. Most others would just use a "calibration fluid" to offset their damaged refractometers that were dropped once too often.
Bcavalli;1039688 wrote: Nothing personal but, I used a hydrometer back in the 80s during my first run with salt water aquariums. It wasn't very accurate back then and I doubt they have improved their accuracy since then. To each their own I guess.
outdrsyguy1;1039831 wrote: You have something else going on, I have starved Birdsnest corals before with zero nitrates and zero phosphates. It's more like weeks to a month, not days. And even then they just start to lose color.
outdrsyguy1;1039835 wrote: I spent almost a year killing corals and chasing ghosts. Mostly trying to figure out what was wrong with my water parameters when everything tested fine. Finally I figured out I had stagnant water from pumps turning on and off and once I corrected that everything fell into place. I think you're getting little blasts of ammonia from somewhere, whether it be stagnant water or a mini cycle from a new tank. Tough to say but that's my two cents. I've had high alkalinity, low alkalinity, even accidentally ran my calcium at 260 ppm for a month and corals just start to look bad over the course of a month. The only time I ever had things die as fast as you are describing is with ammonia or some other chemical.
Bcavalli;1039837 wrote: +1 If I remember correctly you cycled your tank with a cup of windex and your also running skimmer less. I Suspect Rusty is on point that maybe you have some unknown chemicals still in your system. There is also another explanation and that is your system simply is not mature enough to sustain sps corals. Your only two months in, give it some time and things will come around when your system is ready.
Amant;1039886 wrote: I have a birds nest in my 33 long and I do weekly water changes and it's done great so far.