Plecos for low temps

[Bas Pels]

I think this is because between the plants you willo encounter Crenicichla and perhaps Hoplias seeks the plants out as well

Further, Australoheros are not kind fishes, these might kick them out of the plants as well

I'm not a fishpsychologist, I only tell where I found them

But you are right, I did not expect this either, in fact it had to be pointed out to me before I noticed it myself

[gage]

Definitely a bizarre find, and sounds quite interesting.

Your theories do make sense, I know if I were a Gymno I wouldn't want to mess with the Creni's lol.

What species of Crenicichla were there? anything small? say, less then 6" that I could get my mits on? lol.

[Bas Pels]

I think there is 1 Crenicichla which gets to 15 cm - or even smaller. However, I don't care at all for Crenicichla, UI would not know a Cr scotti from a Cr vittatus, and can't tell you more.

[AleGer]

I have 4 Ancistrus cf cirhosus. They were living in 50 l tank for some time. The tank was with out heater and it was situated ta the windowsill. So the temperature in winter was 15-18 C (59-65F). They lived quite well. Even they were spawning in 18C (65 F).
So I think Ancistrus cf cirhosus is a good idea:)