Aggressive Penguin Tetra ... Plz Help/advise

[thefubar]

I picked up some Cardinal Tetra from MA, Syon Park and spent a couple of hours getting them into the tank. Now my Penguin Tetras haven't left them alone all afternoon/evening. They are chasing everyone round the tank.

I've done some reading and found out they get aggressive when they are the largest fish in the tank and this has only become obvious since i re-homed 2 clown loach and my remaining giant danio.

I had some ideas for sorting this out and wondered whether people thought they were good/bad. Thanks.

1. Really Hopeful ... Would getting a pair of blue rams "reset" the large fish balance in the tank. Or would they just start picking on them too?

2. Could try removing them and shuffling the tank around to reset the boundaries?

3. Would anyone like to swap 2 penguin tetra for black neons or cardinals??


I put the most aggressive one in a bag floating in the tank for a few hours just to give the little ones a break, but i just released him for the overnight. If i come down in the morning to find i don't have my 5 cardinals i won't be best pleased

What do ya think? any ideas

 

[NaughtyT]

Penguin tetras can be nasty little fish,i had 8 of them,a while later i noticed quite a few of my fish had nibbles taken out of thier fins,corys,neons,bollivian rams etc i couldn't work out who was doing it until i watched the tank one night with light out and it was those guys I rehomed mine.

 

[meguro]

Blue rams won't work, you'll need something like a gourami etc.

 

[thefubar]

I had a feeling it was a question of a new home. I'll put them in the livestock section and see of anyone local will have a more suitable tank.

I don't really want to add more fish if they are going to be picked on.

 

[thefubar]

If a gourami are a possible solution...

Which ones should i be considering? Are they happy to live with Penguins, Cardinals, Otos, Corys, Blue Rams and cherry shrimp? This has to be 100% compatibility mind you


What sort of tank conditions and habitat conditions should i have available for them too?

At the moment the penguin tetra have calmed down and i still have 5 Cardinals . Hopefully sending the misses out to pick up 2 Otos this week...if the bullys stay clam enough!!

 

[aleem444]

you guys there are gouramis that are pretty social fish these are some names of em there are kissing gouramis,coral blue dwarf,moonlight and many more you should put these with your penguin tetra then they will not be aggressive i have got 14 neon tetras,3 penguin tetra,4 glowlight tetra,kissing gouramis,and many more fishes
and they are peaceful especially the penguin tetra and the kissing gouramis

i dont know whats wrong withe your tetra fishes

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[lljdma06]

How many penguin tetra do you have? If it's only the two, well then that's your source of agression towards other species. If they were in adaquate numbers, say six or more, I'm sure the agression would be focused on their own species. I would have built the school up. If it turns out you don't want them anymore than exchanging them or offering them to a good new home that can provide them with adaquate numbers is the best route. I wouldn't add anything else until you resolve this situation.