Need fish for nano!!

[rock_lobster]

So I am looking to add about 10 fish to my new 20 gallon tank. I currently have a 16 nuvo and anymore than 2 fish always seem to die. I currently have a cardinal and fire fish in there. I think the cardinal may be the aggressor. Anyways what type of fish can I keep high numbers in a small tank? Something that won't pair off and kill all the others.

 

[badstorm48]

You can do a couple clowns, other types of damsels, some basslets like Royal gramma. That about it that I can think of off the top of my head. You want to look at fish that only get 2 inches at the very most. With clowns stay away from the maroons and tomato clowns that get large for a clown fish. Stay with ocellaris or true perculas, but don't add more than two or one will die from the beating it will get from the other two in a tank size like that.

 

[Humblefish]

These would all be good selections: http://www.liveaquaria.com/product/aquarium-fish-supplies.cfm?c=15+2124

 

[rock_lobster]

Most of those will fight and kill same species. Clowns will also paid up so 2 max and they become pretty aggressive in small tanks. Are there any that will school in large groups not kill each other off?

 

[eatbreakfast]

Most of those will fight and kill same species. Clowns will also paid up so 2 max and they become pretty aggressive in small tanks. Are there any that will school in large groups not kill each other off?

Trimma and eviota gobies, barnacle blennies, Tryssogobius and Ailiops mini dartfish, and parvulus cardinals are all small, peaceful, social fish.

 

[rock_lobster]

Trimma and eviota gobies, barnacle blennies, Tryssogobius and Ailiops mini dartfish, and parvulus cardinals are all small, peaceful, social fish.

Thank you so much! I am going to research these little guys.

 

[ngvu1]

For a 20 gallons and to have 10 fish....the only type I can think of is neon bobies

 

[rock_lobster]

For a 20 gallons and to have 10 fish....the only type I can think of is neon bobies

It has a 150 gallon sump/Refugium so it should be able to sustain more than just neon gobies.

 

[Wilsoni]

Trimma and eviota gobies, barnacle blennies, Tryssogobius and Ailiops mini dartfish, and parvulus cardinals are all small, peaceful, social fish.

Barnacle Blennies are awesome!

 

[ngvu1]

Never mind then. Did not know your have that much water volume...

It has a 150 gallon sump/Refugium so it should be able to sustain more than just neon gobies.

 

[Wilsoni]

Honestly I would say just go straight for a Panther Grouper...

 

[GroverSenpai]

Most of those will fight and kill same species. Clowns will also paid up so 2 max and they become pretty aggressive in small tanks. Are there any that will school in large groups not kill each other off?

I thought you could keep Skunk Clowns in groups?

 

[eatbreakfast]

I thought you could keep Skunk Clowns in groups?

It is possible to keep them in a colony if acquired as juveniles. However, a 20g doesn't afford them enough space.

 

[yogamon]

Bicolor blenny,great fish and hardy