I Had To Pull My Synodontis Euptera

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Wailua Boy

Wailua Boy

Potamotrygon
MFK Member
Jan 2, 2015
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Hawaii
I started noticing bites and scratches in one of my aquaponic reservoirs(2000g). This tank consisted of 4 Pangasuis hypothalamus(14-24in), 2 Pimelodus blochii(10in+), 1 golden channel catfish(24in), 1 Syno euptera, a breeding pair of red shoulder sevs, 2 pairs breeding of white Oreochromis niloticus and a few common plecs(12-20in). All these fish were accepted as rescues, except cichlids..

The poor story of the Syno was I buying a used aquarium, upon arrival the owner had tank drained and Syno in bucket with about 2gal of water, no aeration and about a teaspoon of food. I told her you are killing this fish, she said, "My kids are having fun with it for a few days". So I mention I can adopt fish and she gives it to me. Fish had a terrible case of Hex and completely missing barbels upon arrival....

I first noticed cookie cutter bites about an 1in in my blochii and now am seeing bites and scratches in my pangasius school. I initially suspected my Syno and have separated him to an aquarium(see pic). I'm hoping I removed the right fish. Any advice or insight.? Thanks MFK's

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Sounds about right, big synos can be real jerks. We had a eupterus at the store that was super territorial and would pop out and bite anything that came near his corner of the tank.
 
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Yep that would of be my guess too. I had a 7" synodontis eupertus with my blochii's and they both had marks like that. I rehomed the synodontis and what do you know. No more bite marks on my blochii's.
 
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Hopefully peace will return to the res. Its gotten to the point, the blochii pair won't even leave their cave all you can see is barbels extended prior to attacks they were very active.
 
It could also be the cichlids, esp. if they are starting a family.

But yes, synos have a tendency to rasp slime off IDS. Yet, it is atypical (not impossible) for them to attack blochii. That IMHO tips the cup of the guesswork toward cichlids.
 
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thebiggerthebetter said:
It could also be the cichlids, esp. if they are starting a family.

But yes, synos have a tendency to rasp slime off IDS. Yet, it is atypical (not impossible) for them to attack blochii. That IMHO tips the cup of the guesswork toward cichlids.
Click to expand...


I've been monitoring the situation and cichlids have their territory and the catfish really just stay away. The aggression is definitely happening under the cover of darkness and the bite marks look a bit toothy to be any of the cichlids but anything is possible....
 
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