What method are you using? I use the McMaster method so I don’t need a centrifuge to prepare the sample. I first purchased the floatation solution but now figure that’s a waste of money. On my next one, I plan to prepare it just like @MellonFriend said. I’ll likely use epsom salt. I found the measurement for salt to water and will get as close to that as possible (I think it was 1/2 c epsom salt to 16 oz of water, but that will make too much for me so I’ll be scaling that down). I plan to do it right before and mix until dissolved. Then proceed with the normal steps of the McMaster method.