Is this color break?

[Stray59]

Thank you for the new pics - but I am still not sure. If that is the only white spots you have, just swab them with alcohol and keep looking for new ones - especially around the base of the leaves and where the "stem" enters the medium - it's hard to say from here!!!
Yes, Agdia strips are expensive - but again, I have to do small amounts at a time (shoestring budget and all that!!) and overall the cost balances out if you end up with a clean collection that you can enjoy for years. Or decades - ! A sick collection will eventually die off or just get so ugly that they are not (IN MY OPINION) worth having and investing fertilizer, etc. into.
Best of luck!
Steve