hi to all a friend of mine as had a load of shrimp die and didnt know why he sent me photoes and said these red spots appear and a few days later they are dead, all water perameters have been checkek and are fine.before they die they lie on their side an just move theis swimmers also the red patches go clear like an ulsar ive looked at these shrimp and believe it is rust spot but would like a second oppinion third or fourth, i thank you in advance
I don't think most people measure GH or KH in parts per million, I think your results would be KH 0-1 and GH 3-4.
You don't need to remember the colour the drops should change too, as, as you say the colour in the test tube should match the original drops colour to get your reading.
You may need to get some GH/KH+ for cherry/neocaridina shrimp, as your results are nearer caridina shrimp parameters. Cherry shrimp though are a lot tougher than bee shrimps so they may even survive in the parameters you have but not do as well? Anyway, if you are still cycling you can come back to that nearer the time that is done.
The best shrimps to get are juveniles as you know you will have them longer (you can't tell how old an adult is) and they are better suited to adapting to new water parameters etc.
You may find the below video interesting and useful as it covers virtually all you need to know at the start:-
HI Welcome to SKFA.
Are your shrimps eating the crab cuisine at all?
I don't blame them if they are not eating it. There are much better alternatives out there. Crabs will eat any junk, but shrimps are a lot pickier in their choice of food.
Have a read of the numerous choices in the "Food & Nutrition" subforum. And remember, you don't have to limit yourself (and the shrimps) to processed foods. Look at leaves, flowers, vegetable off cuts or even frozen bloodworms.