under the cloudy in the afternoon the photosynthesis process is not running completely and release less of oxygen to mix with water, it is possible to get low DO at the bottom, better to run the aerator at this time to safe the animal.
Hi mam, I'm Nithish from India. I have completed MSc Fisheries science and I have 3 years experience in vannamei farm Technician and also Nursery Technician as well. I would like to work with lachance aquaculture mam