Endli Aggression Please Help Before I Have To Rehome :( (videos inside)

[PartyHacks]

Here is my baby Around 12" Alpha Endli, Beautiful.

She will snap and would probably have killed my lapradei if I would not have seperated them months ago in my 125 gallon.
She also ate 2 smaller bichir when she was younger overnight.


As you can see, I seperated 1/3 of the tank solely for her months ago. I have a buyer who offered me $70 for her, no idea if that price is good or not, but I don't want the money.


In your experiences, have you ever had a bichir that was a total d*ck to his tankmates clean up his act? I am going to add new hiding places etc.

Water parameters are good, tlindsey kno4te Niki_up D deeda duanes and a few other of you guys schooled me on what cycling is and why it was important a few months ago, and this is the first time I can confidently say that my tank is cycling great!


I have 1 canny filter, 2 125 gallon sponge filters hooked up to a 40watt air pump.
125 Gallon
Stock List:
2x Fire Eel 12" incoming
1x freshwater dolphin fish (incoming)
1x ornate 6"
1x polli 6"
1x lapradei 8" (use to get picked on really badly)
1x endli 12"
1x florida gar 12"

 

[kno4te]

Endlicheris can be like this. You need other polys large or bigger compared to the endlicheri but not smaller. This type of behavior will continue. Likely need to get rid of the endlicheri but that’s just my suggestion.

Id also pass on the fl gar and fire eel unless your have a larger tank planned.

 

[duanes]

I find that keeping similar shaped fish together in the same tank is often unwise.
Most fish see other similar shaped fish as competitors, and if one is smaller, not of a size that can defend itself, it often ends up dead.
If they are similar in shape but inhabit different levels in the water column this may help slightly, but close proximity in even the largest tanks, can be problematic.
In nature "usually" only one species of a genus may inhabit an area, ie, you seldom find two species of Parachromis living together, or two species of Vieja in a small area.
Yes these fish I mentioned are cichlids, and notoriously territorial, but this often applies to other non-schooling fish too.
Schooling fish are the acceptation to the rule.
This is probably why I at certain points in fish keeping, i was keeping 20 separate tanks.
If had had a long cylindrical species, I never kept it with another long cylindrical species, or another in the same genus.
Example,

What I wouldn't do, is keep the pike cichlid above, in a tank with another species of pike cichlid, a Parachromis, or a bichir, or any other cylindrical predator.
Its interesting I see many posts where because people like a certain shape type fish, so they'll put all Parachromis in one tank, or all Vieja together, and wonder why there is chaos once these fish are adults (as juvies it was fine).
But in nature small fish shoal as a protective measure, yet as adults it is usually not the norm.