Quote Originally Posted by Xia_Ke
Do the bottles I'll use for my stock solution need to be lightproof or just airtight?
Best for them to block light as well as be air tight. Something like this and they come in a few different sizes. I can't think of anything else to tell you, but if you have any other questions I'll try to answer. I think you're in good shape - give it a try and let us know how it goes!