(not from the net!)
I have a 240 L tank and have had my group of synos for about four years, they include a eupterus, multipunctatus, flaventatus, 5 corys, bristlenose plec, panaque and a few gouramis. They all live very amicably, with no signs of any bullies. The eupterus was bought as a minute small black speck that you could have lost in the gravel, and I nearly did several times. Now it's a magnificent specimen, as are all my synos.
I've had a featherfin in a 110 liter African cichlid tank for about a year now. The fish has thrived in the aggressive setting and only occasionally looks worse for wear. He has recently even started to some mildly agressive habits himself! The smallest of my cichlids (an elongatus) used to bully the poor featherfin mercilessly, but recently the catfish realized he was actually bigger than the cichlid, and the tables turned! I now get a good chuckle watching my clumsy featherfin chase the agile cichlid all over the tank. The featherfin lives in harmony with all the other cichlids though. He does chase my poor pleco around, but I've noticed that seems to be a common experience here! He also seems to have some interesting biorhythms. One month he will come out whenever I come near the tank, as if he wants attention, and the next month it's back into hiding whenever someone is close by. Bottom line: a beautiful fish that can thrive in an aggressive tank. My tank info: pH = 7.6 - 8.0 and hardness is moderate. Tank has 2 crabro, a johanni, a lombardoi, an elongatus, and a pleco.
I have a 200 L heavily planted tank with 3 S. eupterus. They are between 10-15 cm long. So far, they set up territories and don't bother each other much. They also don't eat my cardinal tetras, although I bet the tetras might disappear as the syno's get bigger. The plants seem to break up the landscape well and the smaller syno's can easily escape being chased. Because of the bright lighting, I don't often see the cats, unless I drop in food.
I bought 3 about 1 year ago. They are now all between 15-20 cm and get along fine, although in a small, overstocked tank (120 L). All fishes were bought together and there is no fight whatsoever. The synos do sometimes chases each other around the tank, but not too aggressively. Small fishes (neons) are also present in this tank and the synos don't show any aggressiveness towards them. They get along *very* fine with my pleco too, and actually seem to like him: they like to stay close to him, in parallel and not moving (which is pretty funny when all 3 are doing it at the same time). The dorsal fin is also specially HUGE on one of them, way bigger than on any photo I could find on the net. They are also very hardy fish. And so, even though they lose their pretty body pattern with time, they largely compensate by becoming less and less shy as time passes. Way cool fish!
I have had my Synodontis eupterus, which I named MC Catfish, for about 4 years. He is extremely hardy and a ton of fun to watch, especially when he flips upside down to eat the flakes off of the top of the water! He has never bothered any small fish- even teeny Rasboras. The only fish he chases is my Cory Cat. I love his beautiful huge dorsal fin and am looking forward to many, many more years enjoying this wonderful fish. I recommend them to anyone.
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