What is this fish

[Stephen2k3]

What fish are these?

 

[Essjay]

Congo tetra. The fish in the photos are/is male.

Phenacogrammus interruptus (Congo Tetra) — Seriously Fish

www.seriouslyfish.com

And I know you didn't ask but the other fish is a bala shark - I hope you have a big tank!

 

[PheonixKingZ]

They are Congo Tetras. I see them at my LFS all the time. They are really pretty fish.

 

[Stephen2k3]

Thanks I want some

 

[PheonixKingZ]

Thanks I want some

How big is the tank you have? Those pretty fish need quite a lot of room.

 

[Barry Tetra]

They need at least 20-30 Gal tank, and need 6 of their own kind to make fish feel happier.

 

[PheonixKingZ]

They need at least 20-30 Gal tank, and need 6 of their own kind to make fish feel happier.

They need a bigger tank than just a 20g-30g

48″ x 12″ x 12″ is at least a 50g long, maybe a 55g long.

According to the link that @essjay provided, younger specimens can be kept in a smaller tank.

 

[AquaBarb]

Congo tetra are beautiful

 

[Stephen2k3]

I have a 240 litre which I think is about 60 US gallons

 

[snailaquarium]

And I know you didn't ask but the other fish is a bala shark - I hope you have a big tank!

Good effort

 

[PheonixKingZ]

I have a 240 litre which I think is about 60 US gallons

I’m pretty sure that is to small to house Bala Sharks.

It would be a cool Congo Tetra tank though!

 

[Byron]

I hope I am correct in reading your (Stephen2k3) posts as meaning you have seen this fish but not acquired it yet.

Taking the Congo Tetra (Phenacogrammus interruptus) first since you asked about this species, it must have a group. The fish in the photos is male (whether same one or two), easily identified by the longer dorsal fin and the middle extensions on the caudal (tail) fin. Females do not have such fins, and will be less reflective in colour. It is best to get a fairly even ratio of male/female, say three, four or five of each, though you can have slightly fewer females in larger groups if you prefer. But with a good number and a gender mix you will see some lovely interactions. The tank should be 48 inches/120 cm in length. A 240 liter/60 gallon might work, if you could give us the dimensions (length especially). This fish needs space to swim and the males will do what I term relay races down the tank if they are "happy."

The Bala Shark noticed in the photos is another issue, but I will again assume these photos are not your tank. So i won't get into the issues with this fish.

 

[PheonixKingZ]

Yes, like I said, a group of 6 could not work in a 20-30 gallon tank as @Barry Tetra said.

 

[Stephen2k3]

I hope I am correct in reading your (Stephen2k3) posts as meaning you have seen this fish but not acquired it yet.

Taking the Congo Tetra (Phenacogrammus interruptus) first since you asked about this species, it must have a group. The fish in the photos is male (whether same one or two), easily identified by the longer dorsal fin and the middle extensions on the caudal (tail) fin. Females do not have such fins, and will be less reflective in colour. It is best to get a fairly even ratio of male/female, say three, four or five of each, though you can have slightly fewer females in larger groups if you prefer. But with a good number and a gender mix you will see some lovely interactions. The tank should be 48 inches/120 cm in length. A 240 liter/60 gallon might work, if you could give us the dimensions (length especially). This fish needs space to swim and the males will do what I term relay races down the tank if they are "happy."

The Bala Shark noticed in the photos is another issue, but I will again assume these photos are not your tank. So i won't get into the issues with this fish.

It’s 121cm x 51cm x 41cm

I’ve acquired 7 of them.