my teacher's fish tank is being conquered by territorial hillstream loaches

[Byron]

I don't remember the latin name for it but i do remember that they work in groups and don't grow more than an inch.

Please try to give us the scientific (prob latin or greek and latin) name.
And a photo if it is clear will help.

 

[P3rhaps009]

Please try to give us the scientific (prob latin or greek and latin) name.
And a photo if it is clear will help.

i couldnt find the latin name but ill try to get a good picture of them.

 

[P3rhaps009]

Please try to give us the scientific (prob latin or greek and latin) name.
And a photo if it is clear will help.

found it!
name:

Sewellia Lineolata​

pictures:

Picture of the underside:

 

[AdoraBelle Dearheart]

Hillstream loaches - how on earth are they dominating the tank?

 

[Rocky998]

Yah what is the tank size? Also they need high flow

 

[P3rhaps009]

Hillstream loaches - how on earth are they dominating the tank?

Idk! that's the weird part, my teacher says it was them because
1. they are territorial
2. fish started dying once they arrived.
however other fish also arrived with them.

 

[P3rhaps009]

Yah what is the tank size? Also they need high flow

forty gallons, my teacher dosen't pay much attention to high flow so maybe that made them upset and defensive or something.

 

[Rocky998]

They also like to be in groups

 

[P3rhaps009]

They also like to be in groups

yeah，there used to only be one but my teacher realised that and got more. but i think that's what started the killings, they quickly ran out of space and started making more, this makes sense because my teacher not only brought in other fish with the plecos but also one of the tetras reproduced. however if it really is the plecos doing it then they got defensive enough to kill one of their own. It's terrifying.

 

[P3rhaps009]

yeah，there used to only be one but my teacher realised that and got more. but i think that's what started the killings, they quickly ran out of space and started making more, this makes sense because my teacher not only brought in other fish with the plecos but also one of the tetras reproduced. however if it really is the plecos doing it then they got defensive enough to kill one of their own. It's terrifying.

I even have a picture of one of the victim's floating corpse.

 

[Rocky998]

It also could be a disease... Have you ever seen the fish be aggressive? Or has the teacher? What do the dead fish look like?

I even have a picture of one of the victim's floating corpse.

That would be extremely useful.

 

[P3rhaps009]

It also could be a disease... Have you ever seen the fish be aggressive? Or has the teacher? What do the dead fish look like?

That would be extremely useful.

well neither me or the teacher have seen it happen, my teacher just has them as a number 1 suspect with good reason.
picture:

 

[P3rhaps009]

well neither me or the teacher have seen it happen, my teacher just has them as a number 1 suspect with good reason.
picture:View attachment 167599

that was a corydoras

 

[Rocky998]

Are the fins damaged in that pic?

 

[P3rhaps009]

Are the fins damaged in that pic?

yeah but I'm sure that might have more to do with decomposition.