A small write-up on my 3 wyckiis I did for some other thread:
... Cat-eLog states these (wyckiis) can be combined with other large fish in public-size aquaria. Does not explicitly say if with each other. Don't know how big a tank should be to attempt the latter but I've had two ~1.3' wykiis in my 25'x6'x3' pond. Beautiful black fish with coquettish white bands on the upper caudal lobe. Easy to handle, they let me lift them up and out of the water with one bare hand for a moment and put them back, all without a wiggle or a fight. They can easily defend themselves from 4-5 times bigger (by weight) hungry predators like my 2.5' TSN Terroristo and 2.5' TSNxRTC hybrid Evans. They attack them back, if those try, and send them flying across the whole pond. Needless to say no one goes into their holes and if they do they dart out of there as if on fire.
For several months my wyckiis did nothing but hid only 1-2 meters away from each other in two clay pots. Never knew of each others existence and proximity (it is a supposition but I've never seen them fight each other and never any physical damage on them). Then, one day when I was vacuuming for an n-th time and lifted their pots, they, eventually, found each other. There is some serious dislike between those two. They would not stop fighting and even after I separated them by chasing one away into his farthest clay haven, I found them fighting 15 min later. Eventually, one of them had to go behind the divider to join 1.5' wallago leerii, two 2' alligator gars and Co. He let me lift him out of the water and throw behind the divider. So peace was gained back...
This may be helpful too: http://www.planetcatfish.com/forum/viewtopic.php?f=9&t=32376&hilit=+wykii
Here is one of mine at ~1':
... Cat-eLog states these (wyckiis) can be combined with other large fish in public-size aquaria. Does not explicitly say if with each other. Don't know how big a tank should be to attempt the latter but I've had two ~1.3' wykiis in my 25'x6'x3' pond. Beautiful black fish with coquettish white bands on the upper caudal lobe. Easy to handle, they let me lift them up and out of the water with one bare hand for a moment and put them back, all without a wiggle or a fight. They can easily defend themselves from 4-5 times bigger (by weight) hungry predators like my 2.5' TSN Terroristo and 2.5' TSNxRTC hybrid Evans. They attack them back, if those try, and send them flying across the whole pond. Needless to say no one goes into their holes and if they do they dart out of there as if on fire.
For several months my wyckiis did nothing but hid only 1-2 meters away from each other in two clay pots. Never knew of each others existence and proximity (it is a supposition but I've never seen them fight each other and never any physical damage on them). Then, one day when I was vacuuming for an n-th time and lifted their pots, they, eventually, found each other. There is some serious dislike between those two. They would not stop fighting and even after I separated them by chasing one away into his farthest clay haven, I found them fighting 15 min later. Eventually, one of them had to go behind the divider to join 1.5' wallago leerii, two 2' alligator gars and Co. He let me lift him out of the water and throw behind the divider. So peace was gained back...
This may be helpful too: http://www.planetcatfish.com/forum/viewtopic.php?f=9&t=32376&hilit=+wykii
Here is one of mine at ~1':
