I am sorry that a reply is late, everybody.
Unfortunately I must work on a weekday to get a fund to feed my fishes.
Hi plecoperson , Graeme Robson.
Thanks for your replies!
Hi The Kapenta Kid.
Thank you for encouraging.
These sentences may look pretty good at a glance.
But it is because I use a machine translation system in the Web.
I let it translate the Japanese of the number pattern. and I choose to look best.
Your question ; a mussel or some other mollusk?
It is a simple oval shape stone. But flat shape is important for the nest.
Hi piggy4, afroturf, Jim.
I feel glad that you liked the pictures.
Hi mistergreen.
Your question ; So, do you raise the fry in a brackish water environment?
No, I do not add the salt in a water tank. Therefore I do it as fresh water.
Their habits are coming and going of the sea and the river.
(amphidromous migration)
It is said that the artificial breeding of such a fish of the small egg type is very difficult.
There was what I heard from the expert who challenged it, but seems not to have yet succeeded.
Hi wasserscheu.
Those Japanese main sale name is orange fin bonze goby.
"bonze goby" contains genus of Stiphodon and Sicyopterus.
"bonze" means a round head or vegetable diet characteristics.
Unfortunately I do not know the scientific name of the species having such small spot,too for the moment.
You should have already looked at the Japanese site of two following.
There is a mention of the analysis of the DNA in the website of Dr. Mukai.
http://homepage2.nifty.com/PhD-mukai/La ... hodon.html
There are splendid pictures and sleeve notes in the site of Taro.
http://www17.tok2.com/home2/tarogoby/zu ... done2.html
Dr. Mukai is an expert of the gobies, but even he mentions it unless he can identify a scientific name.
He analyzes the mtDNA and states that the difference is slightly big for the same kind of the same habitat.
Therefore, there is possibility of similar another kind in both.
Hi Matt, Batch.
Thank you for introducing the link.
Water parameters of my tank,
The water temp is controlled 24-26°C by a heater and a chiller.
To multiply an alga for their food;
On a day of 14 hours light it up.
A fluorescent lamp; 20W *2 from the upper. 27W, 27W from right and left. 20W *2 from the backside.
Furthermore, I sometimes add iron(Fe) content and the mineral of the silica ingredient.
The pH is values more than about 7.5 .
While lighting up, it can be more than pH 8.
(a) male; OrangeFin (popular name in Japan) ???? Stiphodon sp ????
These are often mixed import with (b),(c),(d),(e).

(b) female; OrangeFin

(c) male; BlueMoon (popular name in Japan) similar to S.semoni or S.atropurpureus ??
These are often mixed with import (a),(b). under blue one. upper red is S.percnopterygionus.

(d) female; BlueMoon
Center two are female. Bouth outside are male.

(e) male; RainbowColor (Niziiro) (popular name in Japan)
similar to S.elegans or S.weber or S.imperiorientis or S.olivaceus.
These are often mixed with import (a),(b).
And it seems to be often that the mature male and female are imported separately.
By the DNA analysis, they seem to be the genealogy which are very near to S.pelewensis genetically.
(f) female; RainbowColor (Niziiro)
Only female can be imported by the name of "elegant".
March 1, 2010 editing.
(g) male; Stiphodon pelewensis? (Guam?, Saipan?, Palau.)
They are extremely closely related with upper "RainbowColor (Niziiro) ".
The system of mtDNA is different from upper species a little.
They aren't traded in as an aquarium fish.
Probably I intend to be the same as the species of this site.
http://homepage2.nifty.com/PhD-mukai/La ... hodon.html

(h) female; Stiphodon pelewensis
?
I'm sorry beforehand.
It takes too much time for translating work to the English.
My answer seems to be largely late next week and the week after next because I go for a trip.
I uploaded interesting video clip of the marriage of the male and female stiphodon in YouTube. Thus forgive it
http://jp.youtube.com/watch?v=SOx4Ss1wP9I
I am not used to English. Therefore,It is likely to sometimes misunderstand it.