I've been looking for small fish for my 5g too! The options are pretty limited. I'm personally going to use mine as a shrimp tank but I'd like to add a fish. I've looked at a sparkling gourami, dwarf livebearers, chili rasboras, dwarf emerald green rasboras, CPDs and Dario Dario. Some people here also suggested a small school of five or so neon tetras. And of course there's always bettas.
Dwarf Gouramis aren't suited for a 5g tank.
Be careful with Sparkling Gouramis. If two pair off they can become aggressive. I dont think I'd put them in anything less than a 10g.
They prefer tank with lots of plants and driftwood to hide in.
Dwarf Gouoramis are very active. They need at least 20gal & I'd rather see them in bigger than that. I have one in my 63gal & it uses all of the available room to charge around like a mainac. I also agree that Sparkling Gouramis should really get at least 10gal.
Maybe a Dwarf Puffer or even certain Shell Dwellers would be ok. For my money I would go with some shrimp & a Betta. The Betta might cause all the shrimp to hide though.
I saw some 'pea puffers' at a lfs a couple months ago... thought they were truely bizarre. But now.... he he, mts is going insane, and I have enough snails now to keep one happy so even they are starting to look intriguing! ;D
I think I recall reading that a 5 was an okay space for one, but as always that depends on which site you look at.
hi, i don't know about the wood, but i have a (what turned out to be male) betta in a 5g hex and he is very happy. i also have a 10g divided with a ct male and vt male. i really like bettas because they have a lot of personality and are very connected to their owners. their little wiggle dancing is so cute!
i think sometimes people think one fish in a tank isn't very exciting....but bettas are anything but boring.
I agree, i have an established 5-gal for a betta that i rescued from a local supermarket, they only just got him in so he was still healthy, but they were keeping him in one inch of
water, so i immediately picked him up an brought him home. his current home is a one gallon bowl that receives water changes of 75% every other day, but not for long!