Methylene Blue Expires?

[MuddyWaters]

I just bought some methylene blue and noticed that it has an expiration date. This stuff expires? There's no way I'll use all this in a year LOL.

 

[Colin_T]

Keep it cold and dark and it lasts longer. I kept my chemicals in an icecream container with a lid on and had it on the bottom shelf in the fridge. Just make sure kids and animals can't get to it.

 

[MaloK]

Store at room temperature in the dark, It last a lot longer than that.

 

[gwand]

Sorry for interrupting the thread but I was wondering how Muddy Waters’ Pelvicachromis pulcher fry were doing? Did you have a good survival rate?

 

[MuddyWaters]

No, I can't find any that lived out of 2 batches or clutches, or herds, or whatever LOL. I think eventually they will. I may try on purpose at some point but I'm currently still determined w the Greenfire tetra (Aphyocharax rathbuni) and some CPDs. Thanks for asking, though!

 

[Back in the fold]

DO NOT spill that stuff on anything ! There isn’t anything that will remove that stain . Clothes , porcelain sinks , the silicone seals in an aquarium , you name it . Whatever you spill this stuff on is marked for life .