def a wyckii...I used to have a big one and eventually sold it to a friend who still has him in a 240 alone....they are very mean and very territorial....my big guy snagged me several times while having my hands in the tank...even when kept with tankmates too big to eat,,they will thrash them untill they die...apart from the aggression they are awesome cats and when large look even better!! excellent pick up.
here are some pics of mine from june of last year:
http://aquaticpredators.com/forums/index.php?showtopic=16670&hl=wyckii
and a few with some other cats here:
http://aquaticpredators.com/forums/index.php?showtopic=15654&hl=wyckii
*lost my photo files a while back so I had to link to the only ones I could find.
info:
Hemibagrus wyckii /aka black devil cat...Crystal eyed catfish
Family: Bagridae
Order: Siluriformes
Class: Actinopterygii
Maximum size: 70 cm / 28 inches
Environment: freshwater
Origin: South eastern Asia
Temperament: Aggressive
Company: Hemibagrus wyckii (Crystal eyed catfish) becomes increasingly aggressive with age and will attack and kill any living creature it shares an aquarium with. They should therefore be kept alone or with other large aggressive fishes in very large aquarium and ponds.
Water parameters: temperature 22-25°C / 72-76°F; pH 6.0 – 8.0
Aquarium setup: Hemibagrus wyckii (Crystal eyed catfish) needs a very large aquarium due to their size. The aquarium should be decorated with large pieces of rock or roots to create hiding places for the fishes. The fishes prefer a well circulated aquarium.
Feeding: Hemibagrus wyckii (Crystal eyed catfish) accept most food that are large enough. Adult fishes should only be feed one to two times a week.