[Nursery Production] Nakajima-style Fine Bubble Equipment for Aquaculture

Added to bookmarks
Bookmarks list

Bookmark has been removed
Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.
Free membership registration

MNB Series

last updated：Oct 08, 2026

中島物産

Fine bubble technology that supports the improvement of survival rates in seedling production.

In seedling production, stable water quality management is essential for the healthy growth of larvae and fry. Particularly for delicate larvae during critical periods, oxygen deficiency is a significant issue that directly affects survival rates. When dissolved oxygen (DO) in the water decreases, stress in the larvae increases, potentially impacting their growth and survival. In response to these challenges, our fine bubble system supports seedling production sites by providing precise oxygen supply and improving water quality. 【Usage Scenarios】 - Larvae and fry rearing tanks - Hatching tanks - Nursery pools 【Benefits of Implementation】 - Increased survival rates through stabilization of DO (dissolved oxygen) - Support for healthy growth by reducing low oxygen stress - Improvement of rearing environments by suppressing water quality deterioration

Inquire About This Product

basic information

【Features】 - A fine bubble nozzle with a simple structure that is resistant to clogging - An easy-to-introduce system configuration that can be combined with commercially available pumps - A design that minimizes maintenance burdens - Ease of parts procurement through the use of general-purpose equipment - A focus on balancing oxygen supply performance with introduction and maintenance costs 【Product Introduction】 In seedling production, it is important to raise post-hatch fry and juvenile shrimp healthily and to stably secure the necessary number of tails. With the increase in growth and feeding amounts, oxygen is consumed not only for the respiration of the seedlings but also for the decomposition of leftover feed. The Nakajima fine bubble system enhances the dissolution of oxygen by increasing the contact surface area between gas and water through fine bubbles. It is utilized for managing dissolved oxygen (DO) according to the target species and growth stage, reducing the risk of depletion due to oxygen deficiency and supporting healthy growth. By protecting the water intake section and adjusting the discharge position and flow rate, water flow suitable for the seedlings is designed. When used in conjunction with skimmers, it can also be utilized for the recovery of organic matter that gathers in the bubbles. We propose an introduction that fits existing equipment while minimizing maintenance burdens through a configuration that combines a clog-resistant simple nozzle with a general-purpose pump.

Price information

For more details, please contact us.

Price range

Delivery Time

Applications/Examples of results

1) Measures against depletion due to oxygen deficiency Microbubbles increase the contact area between gas and water, promoting the dissolution of oxygen. This supports the securing of dissolved oxygen (DO) necessary for growth. 2) Responding to increased growth and feeding amounts In addition to the respiration of seedlings, oxygen is also required for the decomposition of leftover feed. It can be utilized to meet the increasing oxygen demand as growth progresses. 3) Designing water flow suitable for seedlings Water flow also affects the survival of fry. By adjusting the discharge position and flow rate, it aims to achieve a balance between oxygen supply and the flow suitable for the growth stage. 4) Recovery of organic matter By using a protein skimmer with fine bubbles, organic matter that gathers in the foam can be collected outside the tank, contributing to water quality management. 5) Reducing the burden of maintenance A simple nozzle that is less prone to clogging and a general-purpose pump support daily operation and maintenance. 6) Reviewing oxygen usage and operating costs By efficiently dissolving oxygen, it aims to optimize usage. The reduction effect is confirmed across the entire equipment, including pumps.