Mold found inside the nutrient bottle(Advanced Nutrient B-52). Safe to use?

Hello. Most mold will die at temperatures over 120 degrees f. If your cheep like me, try putting it in a pot and raise the temperature. don't let it boil. wash the bottle with very hot water (boiling water might melt plastic). Let it cool. put it back into the bottle. check it in a few weeks, if no mold go ahead and use it. If you don't want to try that, go get a new bottle. Good Luck. Chuck.