How many Trimma Gobies for a 20g Macro algae tank?

Northwest_Scapes_

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Hi! So I'm looking to just have a goby dominated 20 gallon Macro algae tank, I'm looking at a group of any of the Trimma species and was wondering how many I could have in a 20 gallon? Also, I was thinking about housing a group of Tryssogobius sp. (Fairy Gobies) in with them so here's my (hopefully) final stocking list and do you think this could work?

*6-8 Fairy Goby sp.
*3-4 Trimma sp.

All species will stay under 2"
 

ChiCity

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in a 20, you could have 7 or 8 trimmas...
different kinds too.

along with 2 or 3 barnacle blennies

and a few others.

these trimmas and their bioload is virtually nil...
a single skunk cleaner shrimp produces more waste than 8 trimmas!
 

ChiCity

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if you can find trimma tevegae, you will be a happy man...

unlike other cryptic trimmas which hop from rock to rock...
tevegaes actually swim in the water column and add movement to the mid level of the tank
 
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Northwest_Scapes_

Northwest_Scapes_

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if you can find trimma tevegae, you will be a happy man...

unlike other cryptic trimmas which hop from rock to rock...
tevegaes actually swim in the water column and add movement to the mid level of the tank
I'm actually looking for some of them and trimma caudomaculatum as well! Arguably the most beautiful species in the whole group imo
 

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