Just remember Pulchra are not Tropicals from what ive read they are subtropical so require a cool down period like a number of the other species, simulating cold water run off from the mountain streams.
Ah. You raise an interesting point. I have also heard this and it is true that this fish was discovered in cooler streams. However after considerable research and talking to an importer I know well, who did some enquiries on my behalf, we have discovered that this fish is also found in much hotter, unmoving water, much like many other snakehead species which can be found in everything from lakes to streams to irrigation channels.
It is of my oppinion that all snakehead species survive well in a range of water temperatures, parameters and with different ammounts of water movement. However, the fish pictured here is going to provide the basis of the first ever official in depth care and information profile on this fish to be written by a friend of mine. I am in the process of trying to aquire another of the species and a Channa Ornatipinnis to help with this article. I believe this snakehead to be one of the oldest ones in the country and I am actively talking to other owners of these fish to confirm my findings.
From my findings however, snakeheads in general like fast currents. I keep them in a range on temperatures from 23degC to 27degC in different tanks with varying amounts of surface aggitation. These fish seem to feed well at all of these temperatures and certainly feed better with faster water than with a slower circulation. Surface aggitation is not paramount to these fish as they are able to breathe from the surface but it does often increase or at least change flow within the tank which they do appreciate. The ones I own have never attacked another fish. The tank that houses the Pulchra has 2 super-large cannister filters operating at full power and slightly varying heat due to one of the heaters being on a timer that turns it off at night. this keeps the temp around 23-25degC during the day and 22-23degC during the night.