New methylene blue

can anyone tell me the purose of using 0.5% methylene blue dye in the experimenet of water potential of potato tuber cells????? thx >W<

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I checked 3 pet stores and still none had methylene blue... Anything else?

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Thanks... but I was wondering if it works well. So the methylene blue can be bought at walamart. And which would would work better?

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Brilliant Blue FCF is FD&C Blue #1, so if you are in the US, you should be able to get it as food coloring at the grocery store. As you noted, Methylene Blue is available as a disease treatment for aquarium fish, but I am not certain if the ...

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... to stain bacteria that can be bought at a Grocery store or Walmart. If methylene blue would be a lot better then Brilliant Blue FCF then I could use that. I think you could ...

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