this is a very interesting topic. i ask to who answer to write the english answer and the italian translation. for your posts tyrano, there are no problem, i translate them in italian ;-).
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è una discussione molto interessante. chiedo a chi risponde di scrivere la risposta in inglese e la traduzione in italiano ( o solo in italiano, poi traduco al limite). per le tue risposte tyrano non ci sono problemi le traduco in italiano.

Some weeks ago I was thinking about making a river-tank to breed this kind of fisches.. bud I didn't find a good tank (at a good price).

Now I have a small tank (about 50 liter) I wonder if it's enough for a couple..

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Qualche settimana fa stavo pensando di costruire una vasca-fiume per allevare questi pesci, ma ho abbandonato non avendo trovato una vasca adeguata (ad un prezzo adeguato)

Ora ho una piccola vasca sui 50 litri, mi domando se vada bene per una coppia.

new goby

http://i456.photobucket.com/albums/q...ogobiussp3.jpg

http://i456.photobucket.com/albums/q...logobiussp.jpg

Mugilogobius latifrons

http://i456.photobucket.com/albums/q...avipinnis3.jpg
Glossogobius flavipinnis

http://i456.photobucket.com/albums/q...cktondano8.jpg
black goby tondano - Mugilogobius cf amadi

wow! very good!!

that's soo good!
I really like your Goby, all the species that you have are beautiful,in France you find it in a normal acquarium shop or do you need to order them? because in italy i rarely see some goby..
__________________________________________________ __________________________è molto bello!
mi piacciono molto i tuoi goby,tutte le specie che hai sono bellissime,in francia le hai trovati in un normale negozio di acquari o hai dovuto ordinarli?perchè in italia li ho visti raramente..

you made ​​a list of your Italian wholesalers and I will try to contact them to see if they have no gobies in their Stocklist.

the secret my friends, is to work with the wholesaler and you know the seller in store.

If you are notified Receipts of fish from the wholesaler, you create a envy of new fish in your forum, the demand is created and the stores know that the fish are available from the wholesaler.

and if you continue the chain aquaristic market, you observe the fish receiving to the importer and you inform to the wholesaler...

Here's how have awoken the market aquarist.

Out topic my friends, you have a topic that says how you have done to ban the ball a goldfish.

thank you

WooW.... wonderful #36#

new fishes

http://i456.photobucket.com/albums/q...biusrexi17.jpg
Mugilogobius rexi

http://i456.photobucket.com/albums/q...uvinculus4.jpg
schismatogobius ampluvinculus

They are amazing! Congratulations!
Can you explain how you set up the tank with related information?
I am very curious also because the fish are beautiful!!
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Sono stupendi! Complimenti!
Puoi spiegare come hai allestito la vasca con le relative informazioni?
Sono veramente interessato, anche perchè sono dei pesci stupendi!

200 liters 7,5 ph 8kh 10gh
http://i456.photobucket.com/albums/q...stiphodon3.jpg

Stiphodon semoni: 5
Stiphodon female species not identified: 5
Stiphodon atropurpureus 1
Stiphodon rainbow 4
Sicyopterus sp 3
Schismatogobius ampluvinculus 4
Rhinogonius duospilus 3

96 litres - Sulawesi 8 ph 6kh 8gh
http://i456.photobucket.com/albums/q...esulawesi3.jpg

Mugilogobius rexi , 5
Mugilogobius latifrons - 4
Mugilogobius amadi cf - 5