Can theese cichlids go together?

[Conort2]

Which to choose of theese two: Apistogramma Macmasteri Red Mask or Apistogramma Macmasteri Gold?

They’re the same species so no difference except colouration.

Hope they will be gentle on my Corydoras sterbai.

they’ll most likely be fine unless they spawn, which there is a good chance of happening if you have a pair. Then you need to hope there is enough space as corydoras are pretty ‘stupid’ when it comes to respecting fishes territory. They’ll get attacked and then proceed to swim back again to the same area to be attacked again.

 

[sparkyweasel]

But I also looked at the Nannacara anomala - Golden Dwarf Cichlid. It looks interesting and might be the one Im going for. Whats best, a pair or 1 male/3 female?

Pair for these, harem for (most) Apistogramma spp.

Wondering if you can say how big a Apistogramma territory got to be, as a minimum?

That depends very much on the tank decor. They like hiding places/caves which are out of sight of each other, eg with plants or hardscape blocking the line of sight from one to another.

Apistogramma cacatuoides is a good first Apistogramma and more adaptable to hard water than most. They will certainly take dried and frozen foods, although they love live foods too, as do most fish.

 

[sparkyweasel]

I have been a bit doubtful about the Aquarium Laboratory website because it is not clear who the authors are, and wouldn't be persuaded by the information that they present.

And so tactfully expressed.