I have seen pellets become moldy when removed from the bag and stored in buckets with tight fitting lids (plastic storage containers). This happens especially in warm, humid weather. This in one of the main reasons to be watchful of older food from production date especially when it is stored in containers with tight fitting lids. Feed in the original bag should have a production date somewhere on the bag/tag. Old food IMO would be more than 10 months old. I have seen feed get moldy when 3 to 6 months old when not stored properly esp in humid conditions.
Having just one or an occasional YP die after 3 weeks is not alarming. A latent death a couple weeks after stocking is not uncommon due to what perch have to go through when net harvested, held, transported, and restocked. The warmer the water for YP the harder it is on their metabolism esp 70F+.
Last edited by Bill Cody; 06/14/19 08:54 PM.
