Wallago Leerii question

  • We are currently upgrading MFK. thanks! -neo
I could easily be wrong but at present I don't think so. Their description from FishBase does not sound that they are a rheophilic fish (usually the fish that inhabit rapids and such) - mostly they live in moderate-to-slow current: "Adults inhabit large streams & rivers. Fry occur at the mouth of small streams connected to larger rivers, where the bottom is muddy & with overhanging vegetation. Feeds on prawns. Oviparous, distinct pairing possibly like other members of the family. Fishermen along Kapuas in Indonesia observed that it used to form large migratory schools in Kapuas mainstream but such schools had become less noticeable, & this was attributed to intensive gill netting. Food fish. Fisheries: commercial."

But this would bring lots more oxygen. So if it was suffering from the insufficient DO, it may appear that the fish loves it.
 
I can't really tell if he loves it. Because his quarantine tank didn't have a power head and as i move him to his real tank, i,m afraid it might not suit him to have that much current (2200).

Upon my observation, he stays under drift woods ALL DAY and comes out at night to feed..

Thanks sir, i will try to do research on fish base and their habitat as well.

But if people got ideas, please do help:)


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Keep in mind while reading up he is tiny, almost fry still. The habitat, the behavior, and habits often change and can change drastically as fish grows into a juvi, sub-adult, and adult. Fish at different ages tend to occupy different environments.

Obviously a 5 footer has little-to-no need to hide for protection but only for ambush and does not fear deep open water the way a vulnerable youngster would and should avoid. Older fish often require more oxygen - hence preferring deeper=cooler and/or faster water.

Young often prefer shallow habitats near a shore with lots of cover and devoid of large predatory fish but vulnerable to wading birds - hence, they hide all day not to become a bird, snake, or small mammal meal. Warmer waters of the shallows also help increase the metabolism and grow quickly and as such better the chances of survival to adulthood = outgrowing the size most predators of water, land, and air can handle.
 
thebiggerthebetter said:
Keep in mind while reading up he is tiny, almost fry still. The habitat, the behavior, and habits often change and can change drastically as fish grows into a juvi, sub-adult, and adult. Fish at different ages tend to occupy different environments.

Obviously a 5 footer has little-to-no need to hide for protection but only for ambush and does not fear deep open water the way a vulnerable youngster would and should avoid. Older fish often require more oxygen - hence preferring deeper=cooler and/or faster water.

Young often prefer shallow habitats near a shore with lots of cover and devoid of large predatory fish but vulnerable to wading birds - hence, they hide all day not to become a bird, snake, or small mammal meal. Warmer waters of the shallows also help increase the metabolism and grow quickly and as such better the chances of survival to adulthood = outgrowing the size most predators of water, land, and air can handle.
Click to expand...

Will def do sir. He's in a 30g tank with a couple of drift woods for hiding and a hydrilla canopy on top. Constant supply of ~5mm mosquito fish. He grew from 1.5 to around 2.5-3 inches already in that short span. Visibly fatter and thicker. I keep the tank at around 76 degrees and nits dont go over 15 (possibly due to the heavy vegetation?)

Would you suggest i already transfer him to the 100g with pretty much the same set up (if not for the strong current the powerhead provides) already at this stage? I also have a 75g that i could set up but it'll take time to cycle and imo, it would prolly be the same as the 100g. The 100g is a bit shallower than the 75 as well. I use local fine black sand as my substrate as well. Would it be too early to move him?

I cant seem to figure out the parameters of the rivers they live in although i am living in southeast asia as well just not in their locale.

I cant say for a fact that he is healthy because honestly, i don't know much about the specie. but judging from activity, appetite and growth, i would assume he is.

Depending on the growth and activity, im planning for him to stay in the 100 for about 6 months or so. I have yet to decide if i would gamble putting him in a community or a specie pond if it deems necessary.

Hence your help and opinions are very much appreciated! Thanks!




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If there is no threat for him in the 100 gal, then why not? He should grow much faster, probably ~2 times faster in the 100 gal vs 30 gal. Read through this thread, if you will, it clarifies what I just wrote: http://www.monsterfishkeepers.com/forums/showthread.php?545336-Red-tail-cat-growth-rate/page2

If you'd rather he grows slower to give you time to prep his final tank, then it's a different matter.

If he does not like the flow much, there should be plenty of quiet corners in the 100 gal.
 
thebiggerthebetter said:
If there is no threat for him in the 100 gal, then why not? He should grow much faster, probably ~2 times faster in the 100 gal vs 30 gal. Read through this thread, if you will, it clarifies what I just wrote: http://www.monsterfishkeepers.com/forums/showthread.php?545336-Red-tail-cat-growth-rate/page2

If you'd rather he grows slower to give you time to prep his final tank, then it's a different matter.

If he does not like the flow much, there should be plenty of quiet corners in the 100 gal.
Click to expand...

He already moved to the bigger sir, hes growing rapidly too:) upon observation, he grows as fas as a channa micro at this stage:)


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