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For a while, I have considered breeding different catfish.
I am currently thinking about L010a, and L46, but what are the requirements for the tank for those?
I was thinking of a special build, and getting some tanks that are 50x50x30 cm, which is 75 liters. Will this be big enough? Or should it be longer, deeper or higher?

It's good for the L010a, if you take about 1 male and 2 female.
I think the L046 need a bigger tank, about 80cm.

it is better with 1 male and 2 females? Was thinking about 1 male and 1 female?

Most people tend to prefer 2 females and one male for most Loricariidae - but it's not a fast and firm rule - obviously, the minimum requirement is one male and one female. It is often a bad thing to have multiple males, as they tend to fight over the females [in nature, the dominant male will run the other male off his territory, but in a tank, the fish tend to not be able to "go away"].

I'm moving this to the Loricariidae section, as it's more related to that than to Tank Talk.

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Mats

MatsP wrote:Most people tend to prefer 2 females and one male for most Loricariidae - but it's not a fast and firm rule - obviously, the minimum requirement is one male and one female. It is often a bad thing to have multiple males, as they tend to fight over the females [in nature, the dominant male will run the other male off his territory, but in a tank, the fish tend to not be able to "go away"].

I'm moving this to the Loricariidae section, as it's more related to that than to Tank Talk.

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Mats

Okay, Thank you.

I have talked with a fellow dane, who is breeding L46 himself. He has 6-10 adult fish, so the alpha male can choose which females he wants to breed with. He recommends to keep the fish in groups, instead of a pair or a trio. But obviously, that requires a bigger tank.
I guess I will just wait, until I have the space for a bigger breeding tank.

I agree that breeding most Loricaridae seems easier when they are kept in groups large enough to allow the full range of their social behaviors. These social behaviors can be rather complex and are as important as environmental richness when it comes to promoting breeding them. Next best, imo is a trio.