Originally Posted By: Bocomo


Heating issues aside, oxygen levels are at their lowest in the early morning hours. Plants make oxygen during the day and use it up at night. Set your timer to run through the pre-dawn hours.


Yeah, 5 AM to 8 AM is what I used to do. I'm just getting my old pond back in shape and will be careful to start slowly after reading this thread. There's no hurry since my fish are just fingerlings now and not using much O2. New member here, there sure is a lot of good knowledge on this forum.
Sorry to hear of your crisis DADx4.

Last edited by warmouthy; 07/01/18 05:43 PM.