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Regarding the split fin, – the remarks I made would really go for any fault which may have a genetic cause, – whether its one or the other doesnt really matter. If its a genetic fault, (which theres a chance it is if the fish is born with it) – then I think theres a risk it may give it on to offspring, and in that case I actually think its a pity to breed it.
So it doesnt really matter if its one or the other.Regarding the ‘blue line’ problem. Well, many, or most of the fish you buy in shops is without location, – I f.ex. have p.parvulus – bought in a shop, – and without a doubt parvulus. There are also slight differences in this species after where they come from, but I dont know where mine come from. They still belong to one of the most beatiful species in my opinion 🙂
And the blue line – I understand your problem, but still I think excatly the blue line (s) are so beatiful and different from other species, and it has not been so much around in the last years I think, so to have it and help us hold on to this particular sp.species is really valuable.I have moved the topic into the category Breeding 🙂
Regarding what species, – Sverting, I do not agree really. P. nagyi has much shorter ventral fins, with a dark spot. And certainly in this attitude the males would have shown the typical nagyi totally brown colour.
As for harveyi, in my opinion harvey has a rather longish and a bit more slim body, – and again the black in the tail is wider. But there are similarities also I agree.I dont know if I understand what you mean by ‘being lost with Blue Line 🙂 as you wrote, – ? Blue Line is as far as I know extremely attractive and beatiful. Did you read this post ?
https://parosphromenus-project.org/en/forum/3-Species/1352-blue-line.htmlphoto of p. nagyi
and p. harveyi
About the tail … I cant remember quite which fish it was, but I know that I once had the same occurring with a fish … you know 🙂 it might actually have been a guppy :woohoo: … but the thing is I remember the tail was split in the same way, and I wondered if this would continue on in generations, – and I did as Little is suggesting, I tried anyway, thinking it would never be any worse than I would just have to not give these offspring away.
Actually what I did find was that it did continue on in generations, – some offsprings actually had it. Not all, but a few did have the same ‘fault’.
Of course, I dont know, – theres is also the chance its a damage from early life. But if its genetic I would say theres no way to tell that it will not show up, – maybe not immidiately, but if the ‘fault’ is brought on to later generations, – I think theres a chance of that happening unfortunately.If you look at p.harveyi the space between the blue band in the caudal fin and the outer rim of the fin is bigger. I dont think this is p. harveyi.
So, can you find the fish 😛 ??
And what is the age of this little one, I wonder ?
Sex ?? I think theres this one and one more fry in the tank, so I will keep an eye on them. Its a very young parvulus couple.Unfortunately my macro lense had to be replaced and I am waiting for a new one, otherwise I would have tried to get an even better shot
Stefanie wrote:
Where do young paros usually hide after swimming free – near the surface in the drifting plants, or under the leaf litter on the ground?
I think at first they will hide in the leaf litter on the ground mainly, – but you see them both places. It may also have a lot to do with where the most dense area is. They will seek the place which gives them most protection I think.
With the new cave / spawning … I think its really just not always these fish go by ‘the rules’ 🙂 …
Sometimes you have a male which is a really excellent ‘father’ – steady, patient, eggs sitting well in the cave, eggs developing well etc – and then sometimes you have males which seem to be a little more confused or not so patient or whatever … and then you see this happening. Or there may be other things disturbing. There may be clutches of eggs of which some develop, and then he is off trying to get the female to lay more eggs, – maybe disturbing the ‘old’ eggs, or maybe having eggs of different age at the same time. And sometimes a cluct may dissappear over night – and the next day theres are new eggs again.
Its not something I would see as a ‘problem’ – its just individual ways, and maybe sbout learning too.Hi Stefanie.
Yes, its an interesting subject, – and having a thread now means that we can now from time to time post any observations regarding this.
And most certainly welcome anyone who wants to contribute to this at whatever time.I think its a difficult subject though to investigate 🙂 .. I dont know how one could find out with these small fry 🙂 ..
This wont stop me from trying to catch them on camera as small as possible and will keep posting photos ..Peter – you wrote that it could be interesting to find out at what age its possible to distinquish sex in growing young ?
I took these photoes tonight of the small parvulus, – 🙂 .. well, they are really young but its quite clear to distinguish this one. I leave the whole photo unedited, because you can compare with the other fish in the tank beside (which by the way is also a young fish, not mature size)
They are so cute – the tiny parvulus.
Unfortunately its difficult to say the age, I wish I knew but I dont.
I think your tanks are really beatiful and pleasant to look at. Especially the first one with the unidentified females, – what a pity it turned out to be four female. I think you could add a few boraras now that it isnt going to be a tank with fry. Its gives a bit of life and the paros dont mind it – might bring them more out.
The tank for the quindecims, I wonder, do you not have a background ? I think the paros will not appreciate the fact that there is light coming from all sides. Is it standing in the window ?
I think I would put some dark, black paper on at least one, maybe three sides of the tank.But I like your setups, think they are inspiring.
Yes, thats not an unusual situation. He may have had some fry developing, yet still also have had some new eggs ..
Its really difficult to keep track of what happens here, – but definitely he is doing a job, and the chances that some of the eggs developed is big I think.I guess with those pairs where theres a new spawning will interupt or disturb somewhat, and maybe thats one reason why some fry leaves the cave very early ??
It may be that he still needs some learning in order to become the perfect father 🙂 .. but there are good chances I think for some fry to occur, so good thing you are feeding.
Yes, I know, – I think I thought so too.
But without a cave the fish actually has nothing to ‘defend’ and might be just stressed, I quess.With the cave he is positively defending something which obviously is important. And it also of course has to do with that the male now can retreat into his ‘home’ and relax, feeling good – and most of the times the fishes just stand there in the can 🙂
If the male has been in there for a week, – then he has guarded the eggs while they developed into larvaes to the point of them becoming free swimming. That is to my experience what happens during the first week.
Normally, – but I would say, not always, does the male stay and the new fry stay in the cave for some period more, – a week, some days, – but not always. My linkie male was the same, – they hatched, became free swimming and was gone ! But they showed up after some weeks again.
So if I were you, I would feed as if there were fry in the tank now.
Its unlikely that he ate them, – they are of course in danger from other fish in the tank, or the female, – but some will probably survive if you have enough shelter for them.But you say you controlled the cluch two days ago and all seemed well … how did it look at that time ??
After this discussion here I was thinking about my 60 liter harvei male / one linkei male tank, – and I realized I had not paid too much attention to providing good options for them to have caves or territories, – and I often did see fish in this kind of threathening brownish/ grey colour, – as if they always had to quarrel and show off.
So I decided to put in a lot of these small film cans, in fact I put in five :), and its really amazing to see how this has affected them all. Of course theres still some quarrel, but the colours are now much more bright and deep, not so much this greyish agressive, more like full colours (which to me look less stressing ? ) And it is so obvious that they are so interested, they move around the tank, and up in the more open water, not hiding so much, – it does seem to me that its good for them to suddenly have ‘a meaningfull activity’ 🙂
And theres fish in most of the cans 🙂 .. very funny actually.Heres a little observation related to this problem :
I had this one pair of p. harveyi and they had quite a lot of fry swimming around in their tank, so I decided to take out some of the fry into another tank. They were quite big at the time, but before I could determine sex.
After some time it showed up that these were all males, and this was the reason I made this thread, because it really annoyed me that at whole tank now again showed just males 🙂
But then I started taking some of them out again into new tanks (because now I want to experiment a bit) .. and when I thought they were all out … :blink: … I found one small one, much smaller than the others .. and this one I think is female.And looking at the rest of the big brood – it does seem that after I had taken out the bigger ones, – more of the remaining seems to have a chance of being females. They are still not at all the same size as the first I took out (it could be more than one brood)
But it makes me think that there may be something about this with males being bigger, stronger and maybe ‘out-eating’ the smaller females. And maybe I did a good thing by – for other reasons though – separating some of the bigger fry out at an early stage.
Anyway, its just an observation ..
