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I'm planning to buy a 720 liter tank. I would like to keep a few large south american catfishes... any suggestions?

I've been thinking about Sorubims (preferably S.elongatus) and Hemisorubim platyrhynchos, but recently i've been considering a beautiful species i've seen somewhere (can't remember it's name or where i saw it but i think it was named "torosus-tocantins-something")

Too small tank for a M. tigrinus?

but i think it was named "torosus-tocantins-something"

and .

My vote goes to a byotope focus on S. lima

Other cool cats:
Brachyplatystoma juruense
Hemisorubim platyrhynchos
Merodontus tigrinus
Perrunichthys perruno
Learius marmoratus
L. pictus
Pimelodus albofasciatus
P. blochii
P. maculatus
P. ornatus

Will it be cat-only tank? Only pims?

Eduardo

Thanks for the help.

I would like to keep a couple of pims but also perhaps one or two doradids and loricariids.

Maybe some large characins too, to give the tank a little action.

So, what do you say guys? Is 720 l too small for a M.tigrinus? (and isn't it too small for a couple of fishes on that list, such as juruense, perruno and L.pictus?)

oh... I didn't find any info about the size of Aguarunichthys torosus and A. tocantinsensis...

Can you tell me something about that? And how are they with other catfishes, aggressive?

They reach about 30-35 cm SL.
A little bit more info here.

TalenT wrote:(and isn't it too small for a couple of fishes on that list, such as juruense, perruno and L.pictus?)

Yup, well spotted. Hemisorubim and Platystomatichthys are really cool fish, and a small group of P. ornatus are a superb sight. Stick with fish that stay under 18" and your 720l aquarium will give them room to cruise and really show off (and also you'll be able to keep other large-ish fish with them without worrying).

thanks so much for the help guys!!!

coelacanth wrote:

TalenT wrote:(and isn't it too small for a couple of fishes on that list, such as juruense, perruno and L.pictus?)

Yup, well spotted. Hemisorubim and Platystomatichthys are really cool fish, and a small group of P. ornatus are a superb sight. Stick with fish that stay under 18" and your 720l aquarium will give them room to cruise and really show off (and also you'll be able to keep other large-ish fish with them without worrying).

How bis is a 720 liter tank in gallons?

About 190.

So, what do you say guys? Is 720 l too small for a M.tigrinus? (and isn't it too small for a couple of fishes on that list, such as juruense, perruno and L.pictus?)

Yep, I'd say it is too small for these fish. Also L. marmoratus will get way too big for that tank.

What's the adult size of Platystomatichtys then? They are indeed some cool looking fish! According to Baensch Aquarium Atlas, they must be kept in a gigantic tank or else their barbels will touch both ends of the tank at the same time and that's probably not so good...or?

...oh and (I know) that Baensch says a max size of 40cm... but can you trust that? Baensch's atlas has been wrong before hasn't it?

What's the adult size of Platystomatichtys then? They are indeed some cool looking fish! According to Baensch Aquarium Atlas, they must be kept in a gigantic tank or else their barbels will touch both ends of the tank at the same time and that's probably not so good...or?

yes, this is true. This is a very unusual Pim; easily stressed, claustrophobic too.
They can go nuts when you approach the tank, and almost all imported specimen get a misformed upturned nose from ramming themselves into tankwindows and -furniture.

it's not a huge fish; those 40 cm are pretty correct (I've seen plenty imported wildcaughts...), but it's not a happy sight; A tank for these must be roomy; at least 6 foot long, and at least 2,5 better 3 feet wide! those whiskers are as long as the fish, so the span would be 2x 40 cm, wich is 80 cm.....

and docile tankmates!! not a fish that can be kept with big, nasty Pims; those should be likewise docile; hemisorubim platyrhynchos and Sorubim lima are OK.

thanks for the info... switching from one cat to another... what's a reasonable price tag IF i can get hold of some Pimelodus ornatus, and are they usualy available as juveniles? (it's more fun to get small fish so that you can watch them grow )