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Confirmation on digging the starter fish tank.
Hello, I’m almost going to dig the starter tank based on the iAVs course book. I’ve never dug a fish tank before so if someone could this confirm my plan it would give me a lot of comfort.
I’ve bought a 4m x 4m reinforced industrial grade PVC pond liner.
First I’m going to measure a 1.5m diameter as the outline in a x shape. After marking the points I’m going to outline a circle shape based on the marked points. Then I’m going to dig to 1.2m depth using a chain as a rough guideline on the tank shape.
I think that should be fine ?
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1 Reply
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Hello, sorry for the late reply, I did not get a notification for some reason….
- Shape from Top View:
- Rectangular with rounded corners
- This shape maximizes space utilization while eliminating sharp corners that can trap waste
- Vertical Cross-Section:
- Catenary or parabolic curve
- This shape evenly distributes water pressure and facilitates waste movement towards the center
- Minimum depth: 60 cm (2 ft)
- Width-to-depth ratio: Ideally 1:1, maximum 1:1.5
- Smooth liner installation without folds or creases
- Grate or mesh netting 5-10 cm (2-4 inches) above the waste extraction zone
The photo should help.
- Shape from Top View:
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