Hi all!
Thanks for a lot of replies.
Everybody enjoys those pictures, and I am glad, too.
I got by two of them each.
The arrival of the fish from Korea seemed to be extremely rare so far.
However, various Korean fish classes were imported to Japan, and it was sold this month in much aqua shops.
I am not sure whether there is the arrival constantly after this.
It is only a lateral stripe design to be similar, and the habit is considerably different from Khuli loache.
They are not shy like Khuli.
Because they come out to the place that opened out, it is easy to take their picture.
A loach of the genus same as Niwaella multifasciata inhabits Japan.
Japanese Niwaella delicata eats an adhesion alga mainly, but likes the bloodworm,too.
Korean Niwaella multifasciata eats an adhesion alga equally, too and likes the bloodworm.
I show the following links for the people who are interested in a Korean freshwater fish.
http://www.cctimes.kr/news/articleView.html?idxno=62127
http://infish.ccbb.re.kr/renew/
http://www.insamo.pe.kr/zbxe/picto_korea/page/6
The blog which a lot of superior pictures appear in of the Korean freshwater fish.
http://jk-jjamppong.spaces.live.com/blog/
The video that Niwaella multifasciata grazes algae. (YouTube)
http://www.youtube.com/watch?v=6kYv9c-7rA0
In comparison, the video that Japanese Niwaella delicata grazes algae.(YouTube)
http://www.youtube.com/watch?v=WN7zV-woxJk
The video which Iksookimia koreensis absorbs bottom sand and filters detritus and eats.(YouTube)
http://www.youtube.com/watch?v=0ULO-C1tsjM
Niwaella multifasciata grazes algae.
In comparison, Japanese Niwaella delicata grazes algae.

I am not used to English. Therefore,It is likely to sometimes misunderstand it.