Gunagulla, Loomberah NSW Live Weather
Aquaponics at Gunagulla
73 Rainbow Trout in a buried 4500 litre fish tank (holding a bit over 4000l on average) were harvested in mid Dec 2013. The largest of them was 686g, pictured below, and average weight was 432g. There are currently about 100 small Murray Cod in the system, after quite a few died as they were apparently not trained to eat pellets when delivered in January. They are currently on a diet consisting of Blood Worms or a mix of Ox heart and crushed pellets. I have sourced some semi-sinking pellets, and throw some in with the other food, but most , if not all, are uneaten and have to be removed from the sump tank.
The system has a ~2000 litre sump tank (background, under cover), with 9 * 500 litre grow beds with a winter mix of cauliflower, broccoli, lettuce, rainbow chard, silverbeet, parsley, celery, garlic, beetroot, spring onions, chives, chocolate mint, (now finished tomatoes- over 158kg picked between xmas and 17th July from 8 plants), strawberries, and a dwarf banana.
The aquaponics system is proving to be a lot more productive than growing in the soil, and uses a small fraction of the water. In summer 2012/13 the in-ground garden had to be abandoned due to the excessive amount of water required just to keep the plants alive, meaning we were close to running out of domestic water, which is only sourced from rainwater collected from the roof.
In hot weather keeping the system water under ~22 degrees for the trout was quite a challenge. Lots of ice was added to the fish tank on hot days, up to 65kg on a hot day, and the sides of the grow beds and grow media were mostly shaded.
King Parrots discovered the aquaponics vegetables on Nov 6th, so I've had to enclose the greenhouse and outside growbed with netting to prevent any more attacks on the vegetables.
Ongoing operational details such as water temperature plots and other photos (Latest update on last page) can be found here:
Gunagulla Aquaponics System on Back Yard Aquaponics Forum
686g - the largest of the Rainbow Trout in 2013
Trout on the BBQ
Celery 23/7/2014, delicious raw or in soup!
Aquaponics system - 3/11/2013
3 Tomato plants overflowing Grow Bed #8 17/12/2013
Tomatoes from the plants above 24/12/2013
Videos of trout
November 2013 Trout having 2nd breakfast
July 2013 Trout eating 20g of 3mm pellets in 25 seconds
June 2013 Short MP4 movie of trout fingerlings (15MB)
Trout fingerlings 16/6/2013
Green Tree Frog on celery in Growbed #3, strawberries in background