There's no rush for any one solution, but you need a way to accurately test your salinity and you will always need water so getting an rodi unit is on my must have list, I've bought water from the fish store before too, but if your serious about this and will be doing it for a while get a rodi unit, it will save you money and time in the long run. Then a few 5g buckets to mix the salt and water in, but again this is all just basic reefing at this point you can't just ask for answers to the test , you need to learn the material by physically doing and researching then it will start to make sense to you, dont buy a bunch of stuff before you do more research, a good start is BRS how to videos, but you gotta want to learn not just get the answers.Ok thanks. I ordered mag and salinity tests again and they are coming today. Should I retest and see what to do about the water or see if I can buy the RODI and clear out the entire tank? That will be harder but im fine to see if I can.
But you will be fine you are in no bad situation, you have no fish no live stock your fine, now just tune your water and practice at it like anything and you will get it!