Fish farming water tank

What is Corrugated Steel Water Tank for Fish Farming?

Corrugated steel water tanks are increasingly adopted in aquaculture due to their high strength, corrosion resistance, and easy customization. These tanks are made from galvanized or coated corrugated steel panels, assembled on-site with bolted connections, and lined with food-grade PVC or EPDM liners to ensure a safe and hygienic habitat for fish.

They are suitable for a wide range of aquaculture applications such as tilapia, catfish, koi, and shrimp farming. Thanks to their modular design, these tanks can be quickly expanded or relocated, making them ideal for both small-scale fish farms and large commercial operations. Additionally, they are compatible with solar pumping and filtration systems, which makes them efficient and sustainable in rural or off-grid areas.

Inner blue color PVC liner for corrugated-steel water-tank

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Fish Farming Tank Constructed with Corrugated Steel Panels and PVC/EPDM Liner

Our fish farming tanks are engineered for durability and corrosion resistance, combining a robust corrugated steel panel structure with a waterproof inner liner made of either PVC or EPDM rubber, both of which are safe for aquaculture applications.

The corrugated steel panels are available in two material options:

Zinc-Aluminum-Magnesium alloy-coated steel (Zn-Al-Mg) for superior corrosion resistance, especially in coastal or high-humidity environments.

Hot-dip galvanized steel panels with a coating weight of 275g/m² (Z275), ensuring strong rust protection under normal aquaculture conditions.

To further enhance structural integrity and prevent rust at connection points, we use Grade 8.8 anti-corrosion bolts and nuts, which provide high tensile strength and long-lasting performance even in wet and corrosive environments.

This design ensures a reliable, modular fish farming solution that supports both long-term use and easy on-site assembly. The dual protection from the steel coating and the liner guarantees water safety and tank longevity.

Zinc aluminium corrugated steel tank panel

Zinc aluminium corrugated steel water tank panel

Offers superior corrosion resistance, especially in coastal and high-humidity environments. The Zn-Al-Mg alloy coating provides long-term durability, self-healing protection at cut edges, and reduced maintenance. Ideal for fish farming tanks requiring extended service life and exposure to harsh conditions.

Galvanized corrugated steel water tank panel

Coated with 275g/m² zinc for reliable rust protection, this hot-dip galvanized panel offers strong structural integrity and affordability. It’s a widely used and cost-effective solution for water tanks in standard environments, with good resistance to weathering and ease of fabrication on site.

Function of the Fish Toilet (Bottom Drain) in a Corrugated Steel Fish Farming Tank

Waste Removal:

The main function is to remove solid fish waste, uneaten feed, and sludge that naturally accumulate at the bottom of the tank.

This helps prevent ammonia build-up and maintains good water quality.

Water Circulation:

It encourages continuous water flow and helps to pull settled particles toward the outlet.Often paired with aeration or water circulation systems to create a central vortex for better waste collection.

Drainage & Cleaning:

During tank cleaning or water changing, this outlet acts as a main drain, allowing for quick and complete drainage of dirty water from the bottom.

Healthier Fish Farming Environment:

Reduces harmful bacteria growth and promotes fish health by keeping the tank base clean and oxygen levels stable.

Installation Note:

Flanged outlet fitting like the one shown (with liner sealing),

Internal mesh or filter cap to prevent fish from escaping,

External piping to direct waste to a settling tank or filter system.

Fish farming water tank outlet installation

Gasket added on the fish farming outlet

Fish farming water tank connected with PVC liner

Fish farming outlet connected to PVC liner

Fish farming outlet front view

Water Tank Capacities based on Diameter and Height

The table presents data on the capacity of cylindrical water tanks based on their diameter and height. By analyzing this information, we can determine how tank dimensions influence storage volume and help in selecting the right tank for various applications.

Diameter (m)	Height (m)	Capacity (m3)	Diameter (m)	Height (m)	Capacity (m3)	Diameter (m)	Height (m)	Capacity (m3)	Diameter (m)	Height (m)	Capacity (m3)
3	0.88	6	4	0.88	11	5	0.88	17	6	0.88	25
3	1.18	8	4	1.18	15	5	1.18	23	6	1.18	33
3	2.3	16	4	2.3	29	5	2.3	45	6	2.3	65
3	3.41	24	4	3.41	43	5	3.41	67	6	3.41	96
7	0.88	34	8	0.88	44	9	0.88	56	10	0.88	69
7	1.18	45	8	1.18	59	9	1.18	75	10	1.18	93
7	2.3	88	8	2.3	116	9	2.3	146	10	2.3	181
7	3.41	131	8	3.41	171	9	3.41	217	10	3.41	268
11	0.88	84	12	0.88	99	13	0.88	117	14	0.88	135
11	1.18	112	12	1.18	133	13	1.18	157	14	1.18	182
11	2.3	218	12	2.3	260	13	2.3	305	14	2.3	354
11	3.41	324	12	3.41	385	13	3.41	452	14	3.41	525
15	0.88	155	16	0.88	177	17	0.88	200	18	0.88	224
15	1.18	208	16	1.18	237	17	1.18	268	18	1.18	300
15	2.3	406	16	2.3	462	17	2.3	522	18	2.3	585
15	3.41	602	16	3.41	685	17	3.41	774	18	3.41	867
19	0.88	249	20	0.88	276	21	0.88	305	22	0.88	334
19	1.18	334	20	1.18	371	21	1.18	408	22	1.18	448
19	2.3	652	20	2.3	722	21	2.3	796	22	2.3	874
19	3.41	966	20	3.41	1071	21	3.41	1180	22	3.41	1296
23	0.88	365	24	0.88	398	25	0.88	432	26	0.88	467
23	1.18	490	24	2.3	534	25	1.18	579	26	1.18	626
23	2.3	955	24	3.41	1040	25	2.3	1128	26	2.3	1221
23	3.41	1416	24	/	/	25	/	/	26	/	/
27	0.88	504	28	0.88	542	29	0.88	581	30	0.88	622
27	1.18	675	28	1.18	726	29	1.18	779	30	1.18	834
27	2.3	1316	28	2.3	1416	29	2.3	1518	30	2.3	1625

(Both the diameter and height are custom-supported,see below 4.52m high customized water tank)

Factory Tour

Our process begins with high-grade galvanized or zinc aluminum steel sheets. These sheets are sourced from trusted and listed suppliers and undergo rigorous quality checks to ensure durability and corrosion resistance.