Smallest Tank I Can Have

[K.J.]

IMO 6 gallons is not fair to a clownfish. firefish maybe?

 

[littleimp]

If you want inverts (corals, shrimps etc) don't use an external filter out of the box. Cearmic rings tc are a nitrate factory and inverts are very sensitive to this.

Best to use it with, from the top

1.filter floss
2.rowaphos (phosphate controller) in small filter bag
3.carbon, in small filter bag
And if you have room some people are having great succes by adding live rock rubble (smashed live rock)

If you buy a nano with rear chambers these can be used in the same way, best to remove sponges again and replace with filter floss as sponges again go turn into a biological filter which causes nitrates.

Marine filtration is handled by live rock, with plenty of flow around it using powerheads/closed loops.

 

[kkyyllee]

i agree with kj, they need more than a 6

 

[STD]

Neon gobies are a good fish for a Nano

Clowns get too big IMO - a percula can get to over 3"

As already stated a Nano is harder to maintain than a bigger tank

 

[demonmagus]

Although many people do keep clowns in tanks >10g it isn't right tbh, they grow fairly large - I think they're pretty active as well - the profile on this forum says 30g minimum but that could be stretched

 

[Danno]

If you are getting a one to four gallon pico (which is what this is), then you could always get a shrimp instead of a fish. In a pico due to its compact form, I would suggest a filtration media of rubble and phosban. Filterfloss will be a nitrate factory just like ceramics. If you are getting a three to four gallon tank, I see some people pushing the limits and having a blue neon goby and flourishing. Again, the more you push the most prone you are to a crash. You can run a pico without live rock; but in a pico, live rock wouldn't cost much for a small amount and it would look really nice. I've also heard of a "fingerling goby" that only gets 3/4ths of an inch long and that's it. Keep us updated on what you are planning!