I have a pair (hopefully) fo P. polleni, I've if been "given" them as is they are "small spot", having had - in the past - both the "Small Spot - East cost" (those days) and the "Large Spot - Andapa" (again those days) I won't bet on them being 100% pure (like the previous fishes coming from JCN tanks), but this in NOT the key-poin.
1) Pair is, about, 2 years old. Male/large specimens 15 cm or so; Female/small specimens 5/7 cm or so.
2) fishes are kept ina 300 lt tank (heavily planted to allow the female correct hiding chances).
3) tank mates are a pair of large albino Ancistrus and a group of P. interruptus (Congo Tetra).
This being said I'll introduce what I've noticed:
A) The different size puzzles me a lot: I understand the male has to be bigger but a ratio of 1:3 (or even 1:4), aka the male being three, at least, times the female is - as I said - puzzling at least.
B) I think I'm facing a pair because of different sizes, fins shape, behavior and moroever because, as far as I know, two males won't survive in that kind (size) of tank.
C) The female/small fish tend to stay in the dark/shadowed areas while the male (else, the bigger fisk) patrols the tank, every now and then chasing his "mate" but NEVER till the point to make me worry (another clue - IMO - it's a pair) for her safety.
D) The male/bigger fish is, on the other hand, more and more actively chasing my P. interruptus (I had to count two "losses") and stays, more'n more, often still above the small fish (as if he was checking the going in the tank).
E) The small one - insterad - stays (relatively) calm half hidden under a bogwood/lot of Anubias moving back/forth in the more crammed (plants/woods) part of the tank.
F) The large fish is, almost always in the last days, wearing his ink-black livery ("tilapine dot" - forgive my english! - under this circumstances is almost impossible to spot), while the small fish is a more pale with the spot easier to distinguish (of course, I'd dare to add)
G) Both fish (more the larger one) feed eagerly on alnost everything is offered ...
Fishes (and were the only two, sizes 1,5 cm or so) were - about two years ago - rescued on their way to a "Malawi Mix TanK" ...
Could, kindly, any of You give me some esplications/hints? Am I caring a pair or what? And in this case (I have a pair) what's going on in the tank? Are fishes on their way to mate/fight/else?