Gastromyzon unknown02 Profile*x

[Martin Thoene]

*Work in progress* AWAITING ANY FURTHER INPUT FROM HENDRA

Scientific Name: Gastromyzon unknown02
AKA Gastromyzon species SK02

Common name: Hillstream loach

Synonyms: None

Distribution: South Kalimantan, Indonesia

Sexual Dimorphism: Females probably plumper all over than males.

Maximum size: 2 inches (5 cm)

Similar to: Other Gastromyzon species.

Care: Inhabit fast flowing streams over sand, gravel and rocks. Aquarium must duplicate these conditions as fish have very high oxygen requirements.

See: Hillstream Loaches: Specialists at Life in the Fast Lane for more detailed explanation.

With all Gastromyzon species, care is broadly the same. All need excellent water-flow and aeration, numerous rocky hiding places and smooth pebbles and boulders to graze over. Lighting should be bright to encourage algal growth in the aquarium. Plants are not necessary as the fish do not normally encounter them in the wild, but they will help with water-quality. Suitable plants for high-flow environments are Anubias and Microsoreum. These will grow on rockwork or driftwood.

Feeding: Good quality flake, sinking pellets, algae wafers, thawed frozen Bloodworm, Mysis Shrimp, blanched Spinach, Kale, natural algae an advantage.

Water parameters: pH:7.0-8.0 Hardness: Medium Max dh: 12

Temperature: 75.2ºF to 82ºF(24-27.7°C)

Breeding: Not bred in aquaria.

Notes: This fish was collected by Hendra Budianto in the wild and designated SK02 for reference purposes. It is notable in mature specimens for having a pronounced secondary rostrum (nose area) that overhangs the lower and is noticeably longer at the outside edges, giving a concave appearance when viewed from above.
The habitat was a hillstream about 8-12 M wide, up to about 80 cm deep.
The water was very clear and the current strong.
Temp. 26 C, pH 7.8, TDS 054 ppm.
Substrate of sand mixed with gravel and rocks.



Caption: Gastromyzon unknown02
Credit: Hendra Budianto


Caption: Gastromyzon unknown02
Credit: Hendra Budianto


Caption: Gastromyzon unknown02
Credit: Hendra Budianto


Caption: Gastromyzon unknown02. Note either side of secondary rostrum, not yet fully formed.
Credit: Hendra Budianto


Caption: Gastromyzon unknown02
Credit: Hendra Budianto



Caption: Gastromyzon unknown02. Note deeply concave plan view of secondary rostrum
Credit: Hendra Budianto


Caption: Gastromyzon unknown02. Note deeply concave plan view of secondary rostrum
Credit: Hendra Budianto


Caption: Gastromyzon unknown02. Natural habitat
Credit: Hendra Budianto


Caption: Gastromyzon unknown02. Note visible strong current
Credit: Hendra Budianto


Caption: Gastromyzon unknown02, still clinging to a rock as it is lifted
Credit: Hendra Budianto

[shari2]

Is the old entry in the index Gastromyzon sp.(2) equivalent to u02, or should we delete the sp. (2)?

[Martin Thoene]

That entry has all pictures of Beaufortia.

Kill it.

Are you inputting all these u01, etc species in the version you're sending Jeff because the current Community listing does not include them?

Martin.

[shari2]

Yes, they are all there. And I killed it...
The version that will be at the community (but don't worry, it won't look like this...) is HERE

It's sent.

[Martin Thoene]

Most excellent work!

(Martin removes welding mask) I must depart soon to the downtown core where my Dentist awaits to do evil things to my choppers. I will return (drooling ever so slightly) in due course.

Might get brave enough to attempt moving another profile ...or more.

Martin.

[shari2]

Enjoy

[shari2]

Did you notice the one entry in red? Wondering if it actually is a duplicate or if the second name is supposed to be Nemachilus...

[Martin Thoene]

Seen where? I've seen no red entries that i recall. If I had, they'd have been seen and red

I enjoyed.....the numbing is wearing off nicely.

Martin.