Hey guys, i need your advice.
At the moment i keep in my main Tank 4 Polys.
My main tank is a well structured 100 gallon with a lot of hiding spots (the pic is a little bit older, but the furnishing is still the same).
I didn't change anything at the tank / food / water in the last few months.
Until the last 5 - 7 days all my polys got along well. They were the most of the time at the same spot or swimming around together or in pairs.
One Year ago i got a small Polypterus Polli. He looked very small, next to my other Bichirs, so i named him "Würmchen" (german for "mite", according to google translate^^).
He grew like hell and reached 12" in i little bit more than half a year and still seems to be growing...
He soon got my favorite fish, because he is very curious and active.
Sadly i noticed a few days ago, that he started a little bit of territory fighting with marty. This took about an day. I thought, this could be a one-time occurrence and didn't worry further.
I was away over the weekend. When i got back today, things seems to escalate. Würmchen was following Marty and A (the other Males) and biting their tail and anal fins.
This happened over and over again throughout the day.
Now i am concerned about Würmchens aggressive behavior change and worried about the health of my other Polys.
Could this be a adolescent-spring-mood?
Or could this get a permanent problem?
What is the best way to handle this behaviour?
If you need further information, please ask
Thanks in advance!
At the moment i keep in my main Tank 4 Polys.
| Name | Gender | Age | Size | Species |
| A | Male | ~ 3 Years | ~ 11" | Polypterus Delhezi |
| B | Female | ~ 3 Years | ~ 11,5" | Polypterus Delhezi |
| Marty | Male | ~ 2,5 Years | ~ 12" | Polypterus Delhezi |
| Würmchen | Male | ~ 1,5 Year | ~ 12,5" | PolypterusPolli |
My main tank is a well structured 100 gallon with a lot of hiding spots (the pic is a little bit older, but the furnishing is still the same).
I didn't change anything at the tank / food / water in the last few months.
Until the last 5 - 7 days all my polys got along well. They were the most of the time at the same spot or swimming around together or in pairs.
One Year ago i got a small Polypterus Polli. He looked very small, next to my other Bichirs, so i named him "Würmchen" (german for "mite", according to google translate^^).
He grew like hell and reached 12" in i little bit more than half a year and still seems to be growing...
He soon got my favorite fish, because he is very curious and active.
Sadly i noticed a few days ago, that he started a little bit of territory fighting with marty. This took about an day. I thought, this could be a one-time occurrence and didn't worry further.
I was away over the weekend. When i got back today, things seems to escalate. Würmchen was following Marty and A (the other Males) and biting their tail and anal fins.
This happened over and over again throughout the day.
Now i am concerned about Würmchens aggressive behavior change and worried about the health of my other Polys.
Could this be a adolescent-spring-mood?
Or could this get a permanent problem?
What is the best way to handle this behaviour?
If you need further information, please ask
Thanks in advance!
