There are many tiny gobies that would do well in a small tank. IMO I think a YWG is too big for an 8g.
trimma Goby
eviota Goby
clown Goby(yes, they're reef safe but like paddyob said they do munch on polyps of sps)
tiger Goby
griessingei Goby
neon goby
hector goby
jester goby
greenbanded goby
red head goby
hi fin goby
tangaroa goby
masked goby
etc.......
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96" x 16" x 16"//106g Skimmerless Reef, Established Jan. 13, 2012
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