salifert test kit

In the past month I beat a severe dinoflagellate problem and moved forward to testing calcium, magnesium and alkalinity. when I tested calcium it read 400, and alkalinity read 9. but when I tested magnesium with the Salifert magnesium test kit, I was only seeing pink and no blue. I tested the...

I have 3 test kits available for sale (calc, mag, alk). I bought them hoping I could use them, but can't since I'm colorblind and can't see the transitions well. They have either never been used or used once or twice. I live in the Woodinville area and would either prefer pick up or Woodinville...

I'm currently on Day 15 of my cycle and my ammonia reading using a Salifert kit has been sitting at .25 for a good week (nitrites are .1, nitrates are 100, lights have been off, dosed a bottle of Dr. Tim's One and Only on Day 1 and Day 10, and only added ammonia on 3 days as instructed). My...

Ughhhhh. I kinda regret getting the Salifert Phosphate test kit. How the hell am I supposed to efficiently tell between 0.03 and 0.25. It is not too bad to tell that it is above 0.03, but that is where it becomes VERY difficult to read. I quadruple guess myself since at different angles/amounts...