Any suggestions ?

Welcome to Aquaria Central! Your tank looks good, especially for BB Gobies. I would add some form of plants to the tank if it was mine however. I like the look that plants add, whether it be fake or live. Good luck with the Gobies! They are some great little fish to own! Anyway, congrats on the tank and welcome!
 
Yeah, i've thought about java ferns, just a matter of finding them in local stores.
Can you recommend any others?
 
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