蓝眼青鳉

蓝眼青鳉的基本数据

饲养难度

适合新手

寿命

资料较少

体型

全长约3～4厘米（野生青鳉标准体长最大4厘米：FishBase）

饮食

杂食（浮性人工饲料、水蚤等活饵）

容器/水槽

近距离侧视眼睛颜色较易观察。由于黑色体色且无背景反应，即使在玻璃水槽中也能保持黑色。

繁殖

与其他品种杂交时，记录中仅约17%的F1代个体表现出该性状。应选择两眼蓝色清晰的个体作为亲本。

混养/相容性

性格温和，可与体型相近的改良青鳉混养。如果想保留品种特征，不应在同一容器中与其他品种繁殖。

饵料/投喂

只投喂可在3～5分内吃完的浮性人工饲料。夏季每天投喂2次以上，春秋季每天1次为目安，冬季户外饲养时减少投喂。

注意事项

不要将改良青鳉放入河流、池塘、田地等野外环境。与野生青鳉杂交会导致遗传基因混乱。

关于蓝眼青鳉

Blue-Eye Medaka has pupils that look blue due to guanine in the cornea, without changing body color or scales. Small and beginner-friendly. Care tips and FAQs included.

迎接蓝眼青鳉前需要了解的7件事

1. 1Why the eyes look blue

   The pupil (the dark part of the eye) looks blue because guanine appears in the cornea. This does not affect body color or scales, so the blue is limited to the eyes.

2. 2Check the body color

   Our breed guide describes the name as covering either the blue-pupil trait itself or black-bodied strains that carry it. Naming can differ from one seller to another, so check the photos and description, and send a message if anything is unclear.

3. 3Looks vary with light

   How blue the eyes appear can change with lighting, viewing angle, and the individual fish. Ask the seller for several photos or a short video before you decide, so you know what to expect when it arrives.

4. 4Beginner-friendly care

   Care difficulty is rated beginner-friendly. They are small medaka. Start with a container that has room to spare and prepare dechlorinated water. When changing water, avoid big temperature differences.

5. 5Prevent jumping out

   Medaka can leap out of the water when startled, so cover the container with a lid or netting. Leave some space between the water surface and the rim, and close any gaps.

6. 6Feeding and water changes

   Give small medaka-sized food in small amounts, only what they finish. Leftovers foul the water. When the water gets dirty, replace part of it rather than all at once, which helps keep conditions stable.

7. 7Acclimation and monitoring

   On arrival, float the bag to even out the temperature, then mix in your tank water little by little (acclimation). Over the next few days, watch swimming, fins, and appetite, and move any fish that looks off to a separate container to observe. If anything about the eyes worries you, ask the seller.

蓝眼青鳉的常见问题

Q.Are the blue eyes a sign of illness?

A.Our breed guide describes it as a trait in which guanine appears in the cornea, making the pupil look blue. If you notice cloudiness or swelling in the eye, or anything else that looks off, ask the seller about it.

Q.Can a beginner keep them?

A.Care difficulty is rated beginner-friendly. They are small, so with a lidded container, dechlorinated water, and care not to overfeed, they are approachable even for first-timers.

Q.Are they only black-bodied?

A.Our breed guide says the name covers the blue-pupil trait itself or black-bodied strains that carry it. Listings may word this differently, so check the body color in the photos and description.

Q.How large do they grow?

A.There is little data on the adult size of this variety, and individuals vary. It is a small medaka.

Q.How long do they live?

A.There is little documentation on the lifespan of Blue-Eye Medaka, so we can't give a definite figure. Daily care such as water quality, feeding, and temperature management affects their health, so observe them closely as you raise them.

适合饲养蓝眼青鳉的实用工具

在图鉴中详细了解蓝眼青鳉

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