I have 3 yellow, plastic jerry cans lashed to my deck that are filled with diesel and treated with Bio-bor. The were filled in very late October. They are now sitting on deck in the South Florida sun. I use the fuel sparingly now that I am back in my home port. Will it go "bad", meaning stuff growing in it that will clog my filters, because it is in the sun? Is it any worse than the fuel sitting in the tank for a long period of time?

Thank you in advance for your help.