Giải pháp ứng dụng
Freshwater Prawn Farming Equipment
Pond and RAS equipment for freshwater prawn culture, plus vertical crab farming boxes.
Freshwater prawn farming equipment covers the same core needs as other pond crustacean culture — a watertight tank, aeration and controlled feed — with growing interest in running prawns through biofloc or a recirculating aquaculture system (RAS) to lift density beyond what an open pond supports.
Crab farming shares the aeration and water-quality equipment but often uses a different structure: because crabs are territorial and cannibalistic when housed together, many indoor operations use vertical crab farming boxes instead of a shared pond, each animal in its own compartment on a shared recirculating water loop.
Cách hoạt động
How freshwater prawn and crab farming equipment fits together
Freshwater prawn farming equipment starts with the tank: a PVC tarpaulin tank or HDPE tank holds pond or nursery water, with a paddle wheel aerator or roots blower supplying the oxygen prawns need, especially after feeding and overnight. Some farms report prawn farming in biofloc systems to raise density, using the same continuous-aeration and probiotics approach used for biofloc fish and shrimp.
Where farms want tighter water control, RAS prawn farming recirculates water through a biological filter and a water quality monitor, cutting the water exchange a pond would need. Growth depends on consistent freshwater prawn feed delivered on schedule rather than free-feeding, which fouls water quickly in a closed system.
Crab farming equipment for indoor operations centres on vertical crab farming boxes — a multi-tier structure of individual compartments so crabs cannot fight or cannibalise each other, connected to a shared recirculating loop. This is the basis of most RAS crab farming setups, and the same biological filter and monitoring equipment used for RAS prawn or fish farming applies to the shared water loop.
Thành phần
Các thành phần hệ thống
Vertical crab farming boxes (crab house)
A vertical crab farming box system stacks individual compartments so each crab is housed alone, avoiding the fighting and cannibalism that make shared-tank crab culture impractical. Each tier connects to a shared recirculating water loop, making this the standard structure for indoor crab farming equipment.
PVC tarpaulin pond tank
A PVC tarpaulin tank gives freshwater prawn ponds and nursery tanks a watertight, low-cost liner, well suited to seasonal prawn culture where a permanent structure is not needed.
Paddle wheel aerator
A paddle wheel aerator is the standard surface aeration for a prawn pond, keeping oxygen circulating through the post-feeding and overnight periods that account for most crustacean losses.
Biological filter
A biological filter converts ammonia from prawn or crab waste into nitrate, the core stage behind any RAS prawn farming or RAS crab farming setup that recirculates water instead of exchanging it.
Aquaculture probiotics
Aquaculture probiotics support the beneficial bacteria behind prawn farming in biofloc systems and help stabilise water quality in ponds and RAS loops alike.
Freshwater prawn feed
Formulated freshwater prawn feed delivered on a controlled schedule supports steady growth without oversupplying protein the pond or RAS loop cannot process — overfeeding is the most common cause of water-quality trouble in both prawn ponds and crab boxes.
Water quality monitor
A multi-parameter water quality meter tracks dissolved oxygen, pH and conductivity across a prawn pond or crab RAS loop, giving an early warning before losses show.
Thiết bị
Recommended freshwater prawn & crab farming equipment
A prawn package combines a pond tank, aeration, feed and monitoring; crab operations add vertical crab farming boxes on a shared RAS loop.
Hệ hộp nuôi cua xếp tầng, mỗi con một ngăn để tránh ăn nhau, kết hợp vòng nước RAS cho nuôi vỗ cua lột mật độ cao trong nhà quanh năm. Báo giá tận xưởng từ SIGMA.
Xem chi tiết → Bể bạt PVC nuôi cá hàn cao tần, bạt 650–900 GSM trên khung thép/ống PVC, dựng trong vài giờ không cần bê tông cho cá rô phi, cá lóc, tôm và biofloc. Báo giá tận xưởng từ SIGMA.
Xem chi tiết →
Quạt nước (guồng đập) nuôi tôm khuấy mặt nước tạo oxy và dòng chảy tròn, khung và trục inox 304, phao và cánh PP, hộp số côn cong tiết kiệm điện. Báo giá tận xưởng từ SIGMA.
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Lọc sinh học MBBR, tầng sôi hoặc nhỏ giọt với giá thể bề mặt lớn, chuyển amoniac và nitrit độc thành nitrat. Dùng nước ngọt và nước mặn. Báo giá tận xưởng từ SIGMA.
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Men vi sinh đa chủng (Bacillus, Lactobacillus, vi khuẩn nitrat hóa và quang hợp) phân hủy bùn hữu cơ, khống chế amoniac, nitrit và Vibrio cho ao, biofloc, RAS. Báo giá tận xưởng từ SIGMA.
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Thức ăn viên nổi và chìm cho cá rô phi, cá tra, cá chép, cá hồi và tôm thẻ, đạm 28–45% theo loài và giai đoạn để FCR thấp, viên bền nước, đủ cỡ từ cá bột. Báo giá tận xưởng từ SIGMA.
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Máy đo chất lượng nước đo oxy hòa tan, pH, ORP, TDS, độ dẫn, độ mặn và nhiệt độ trong một máy, bản cầm tay và online, phát hiện sự cố trước khi mất bể. Báo giá tận xưởng từ SIGMA.
Xem chi tiết →Thiết kế & chọn kích thước
Design & operating tips
Size aeration and feed together. A paddle wheel aerator or roots blower sized for post-feeding oxygen demand, paired with a controlled feed schedule, prevents the low-oxygen and ammonia problems that account for most freshwater prawn farming equipment losses.
For crab, house them apart, not together. Vertical crab farming boxes exist because crabs housed in a shared tank fight and cannibalise each other — the multi-tier compartment structure is the practical fix, not a luxury option.
Match density to your water-management approach. Pond prawn culture runs on lower density with periodic exchange; prawn farming in biofloc or RAS prawn farming support higher density but need continuous aeration, a mature biological filter and consistent monitoring to hold that density safely.
Keep the RAS loop matched for shared crab and prawn operations. Where crab boxes and prawn or fish tanks share a recirculating loop, size the biological filter and water-quality monitor to the combined bioload, not to either species alone.
Câu hỏi thường gặp
Câu hỏi thường gặp
What equipment does freshwater prawn farming need?
Core freshwater prawn farming equipment is a pond tank (PVC tarpaulin or HDPE), aeration from a paddle wheel aerator or roots blower, controlled prawn feed, and water-quality monitoring. Farms running biofloc or RAS also add probiotics and a biological filter.
Can freshwater prawn be farmed in biofloc systems?
Yes. Prawn farming in biofloc uses the same continuous aeration, watertight tank and probiotic-supported microbial balance as biofloc fish and shrimp, letting farms push density higher than an open pond while managing water quality through the floc rather than water exchange.
What is RAS prawn farming?
RAS prawn farming recirculates pond or tank water through mechanical and biological filtration, oxygenation and monitoring instead of exchanging it, letting farms hold prawns at higher density indoors with tighter water-quality control.
What are vertical crab farming boxes?
Vertical crab farming boxes are a multi-tier structure of individual compartments, each housing one crab, connected to a shared recirculating water loop. Because crabs fight and cannibalise each other in shared tanks, this box system is the standard crab farming equipment for indoor operations.
What is RAS crab farming?
RAS crab farming runs vertical crab farming boxes on a shared recirculating aquaculture system — a biological filter processes waste from all the boxes, water quality is monitored centrally, and each crab stays isolated in its own compartment to prevent fighting.
What feed is used for freshwater prawn farming?
Freshwater prawn feed is a formulated feed delivered on a controlled schedule rather than free-fed, since uneaten feed fouls water quickly in both ponds and RAS loops. Feed rate is adjusted to feeding response to protect water quality.
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