Could everyone please pass on through their networks that The Batavia Coast Maritime Institute in Geraldton Western Australia is looking for an R& D officer. You can access info on seek. Just type in aquaculture as the key word.
Depends on a number of variables. Ammonia is a byproduct of protein metabolism in the fish. If the fish eats a lot of protein and not all the amino acids are incorporated into new muscle then the excess nitrogen is excreted as ammonia. If a fish is…
Hi Sue
I have seen pH ranges on silver perch in ponds from 7 up to as high as 10.8. The highly alkaline ones are due to the absorption of CO2 during the day by algae growing in the pond. In aquaponics I would not expect to get such high pH but there…