twice now I have accidentally let trays get too dry. I lost an entire 72 cell tray due to letting it go dry. I recently let another go dry but not nearly as bad and for a shorter period of time. I rehydrated it today. I am using a burpee self watering tray with a heat mat. Is there anything I could do to help it a little... I have a few serrano seedlings in it or do I just need to save the serranos and trash the rest?