After beginning work in the computer learning space student management teams were allocated jobs in the ARC... * continue and finalise Grading of Trout * construction of biofilter socks * feeding- Trout, Silver Perch fingerlings, Australian Bass cleaning * Water Testing (tests to be published later) * Mini Projects have been developed for management teams including... Worm Farm, Brine Shrimp, Salt Water Aquarium and Yabbie Growing.
Yr9 were joined in the ARC by Stage 3 students (yrs 5-6) today to grade Trout and feed fish. Trout had previously been graded to ensure that each Trout had feeding access to grow at the maximum rate. 3 tanks had been set aside to enable large, medium and small gradings. Today Trout that had been graded as medium (T4) and living in a polyculture with 2 very large Silver Perch were graded to T1 (Large) and T3 (Medium). All students enjoyed the interaction and learned a lot from each other. Jack (Yr6) took some photos see above.
An enthusiastic ‘caravan’ of councillors from Wyong Shire visited the ARC today to get first hand experience of the exciting learning and research venture which is known as the ARC. Councillors were impressed with the underpinning environmental philosophy that the ARC has been built on: A complete recirculation, commercial standard Aquaculture learning and research centre that uses only rainwater and advanced filtering techniques to ensure NO wastage of water occurs Research and development of sustainable food production Effective and efficient use of a small, intensive allocation of land to achieve maximum growth of both native and introduced species OH&S teaching and learning Industry partnerships with: Central Coast Aquaculture Foundation, Swimart, WaterCo, Wyong Shire Council, CIBA and MPG Fish Kariong.
Quick Clean of Risers Drained & Flushed Sump Refilled, Backwashed and Rinsed. Filled Sump Covered some outlet holes with gaffer tape to test reduction of spray onto floor. Added 250g of Bi-carb Soda and 500g of Salt Swept Floor Dead...1 * micky mouse, 1 * jumping trout, 3 * Silver Perch Fingerlings Used car to compress new driveway Fish Fed Well
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Complete making filter socks for Biofilter. **(started see photo) Got some more shadecloth. Seal extremity holes in return to tank PVC pipes to reduce splashing. (Try electrical tape first?) Build second biofilter **(need more fruit bags, shade cloth etc.) increase flow of water to second biofilter. Got a big pot to boil up some oyster shells to remoc=ve remains ready for Bio-Filter Foam Fractionator **(investigating Internet) DONE! Clean Algae off walls/floor of T1 test to see if filter will take algae out of the water. Clean out T7 (blue rectangular tank in Lab) Move 1000l CIBA tank to outside to collect and hold waste water for use in hydroponics. Setup 1000l CIBA tank inside as additional tank T6. Move graded trout from T4 to T1 (Students to do first week back) Do complete water test... including hardness (calcium), Ammonia, Nitrate etc. DONE! Although need more electrical and wet/slippery signs. Complete signage eg. OH&S in ARC and Lab **(need pins) Companion Farming- Worm Farming, Poultry- Chook Farm. Investigate with Wyong Shire Council, Commercial etc. **(investigated plans- student project management teams to build) Bins from Wyong Shire Council for storage and rubbish
Rinsed primary filter, drained and flushed Sump to remove excess food and debris. (see photos) Backwashed and then refilled sump approx. 600l of rainwater from tank. Scrubbed Algae in T2 walls only. Exchanged 2/3 of A3 for fresh tank water. Cleaned and replaced filters in A1, A2, & A3. Swept floor. Australian Bass fed well on 'new' Silver Perch feed however still consumed all 3 cubes of Blood Worm. Silver Perch fingerlings fed on 'new' Silver Perch 2mm feed.
** Work continued on driveway and paths to & from ARC (see photos)
pH 6.4 Conductivity .68 Water Temp 14.3 Air temp 14.5
** Added to Sump- 400 g of Bi-carb Soda. Cleaned Risers and Scrubbed Algae from walls and floor in T1, T3, T4, T5. Added water to A1, A2 ** Work commenced on driveway, paths and car park areas. Levelled and formwork in place.
1 * 25kg bag of Silver Perch StarterFeed Pellets 2mm received today.
This feed will enable us to provide exact feed requirements for the 400 Silver Perch Fingerlings. Compare the Analysis of the feed eg. Protein, Fat, Fibre to the *Trout* Grower Feed delivered earlier. See photos of label and bag for more detail.
www.aquaticfeeds.com.au Protein 37% Fat 10% Fibre 4% Digestible Energy 13.5MJ/kg Ingredients: Fish Meal, Meat Meal, Poultry Meal, Maize Gluten, Soyabean Meal, Peas, Wheat, Fish Oil, Methionine, Lynsine, Vitamins & Minerals. Bag No. 2881 * Details as per HACCP requirements
Swept Floor ARC & LAB Water Test Backwashed Filter Refilled with Tank/Rain Water approx 500l Ground native fish food to create dust and crumble (coffee grinder) Graded Fish Feed/photographed (to be added to Blog) Topped up A1, A2 exchanged water in A3 Drained and flushed sump (removed over feed & faeces)
A pair of Silver Perch of breeding age where sourced from MPGFish today and introduced to Tank 4 (T4). Polyculture- Trout and Silver Perch in the one tank. T4 contained the graded Trout of medium size which have almost caught up to the graded large Trout. These will be combined with T1, large Trout in a couple of weeks. We see no issue with the Trout and Silver Perch cohabitating. This is a significant step leading to our first attempts at producing our own fingerlings- more information as Spring approaches. If you are a member of Aquaculture @ Wadalba Blog please add your comments. Photos to follow.