Bacteria in Ph down/up and nutes.

Just a quick newbie question.

Is it possible for bacteria to grow in ph up/down or for it to be contaminated in any way? Was stored at ~82 degrees for about 2 months. Minimal light.

Same question for nutes. Specifically the BC line of nutes.

Just curious if any harm was done having them stored for this amount of time with this temperature.

I'm worried my ph down could be contaminating my res. I can't see bacteria growing n an acid though. Caps could have been loose for any amount of time, but were never left completely off.
 
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