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Just thought I would show you my latest p.parvulus photoes – this young male was kind enough to let me take some pictures. Of course he should have done it a day when I had just been cleaning the glass, but never mind 🙂 .. here they are
Hello Michael, and very welcome to this forum.
I think your post is in excatly the right place 🙂
And I also think what you are saying is really important, – you are completely right. We do concern ourselves with the survival and preservation of rare species of fish and worry about their habitats, and this should include a conciousness going much further as you say – and also be concerned with what we as aquarists consume in terms of decoration etc for tanks.
This is precisely also what we here try to do – becoming more aware and taking more responsibility. But things takes time.
I dont know so much about the issue of peat, but I can see your point, and I am sure this is a very important thing to consider as well as being concerned about the actual species.
Its always difficult though, since the material (such as peat) is being used and offered to many other different things, and the small amount one would use for paro tanks is so little.
It can even be reused for long times as far as I have learned.
But I think theres are many other obtions also if you want to not use peat. I dont use it so much for water preparation, but mainly for structure of the tank, hiding places etc. And as I say – tiny amounts which is reused.
But thank you for reminding us about this issue, and I hope there may be others who would like to join the discussion.🙂 Just want to say that I have just recieved the new book by Peter Finke and Martin Hallmann and I have to say I am very very impressed. It is a wonderful book and I am going to work my way though every german word of it :), though this may take a while. But I am sure there is a lot of information and knowledge to be gained from it.
Thank you very much, indeed for making this book. I hope many people will buy it and enjoy the work.I can say that after I took out a lot of the leaves + put in the filter the behaviour has stopped 🙂
Unfortunately I then cant say what precisesely they reacted to, but I am happy it stoppedYes, Bartian, – I understand your point about filtration, but to be honest – in the bigger tanks (60 ) of which I have 3 now with groups of paros (10-12) and where the two of them now is running with a small slow filter, the ones with the filter seem to feel better.
I only took the one out of this one because I needed it in another tank, and it seemed to also have lost a lot of power. But I will prefer this to an air pump, which makes too much noise for a living room tank.
And I think they like a small current.Its really interesting what you both write about the labyrint organ.
Thank you Peter, – it does sound logic really.
I think also the fact that I took out the filtration has an influence here. The combination of things probably.
So I have taken out some of the leaves, and for the moment added airbubbles. I will prepare the old filter again and add it.
But it has somehow rocked my idea that paroes do not use their labyrint at all for these purposes, – of course they do when needed to.
The leaves by the way were not fresh, – and they were boiled, – but perhaps too little, I think that may be the case.Heres a clip – I cut the time together a bit. At app. 4 seconds (in the right corner) and 16 seconds (left side of tank) you see a fish going up 🙂
The real clip is maybe 2 minutes long.I am very sad to hear that, – we have missed you as well on this forum. I do hope everything will develop to the better for you, and possibly a new fish-start.
But as you say – one can also of course just read and take part in discussions here and keep informes as such ..All the best
I dont quite understand why you think that is so difficult 🙂 ..
How big size tank are they in ?
And why do you need to take them out now, why not wait untill they are a bit older and easier to catch.
I am really quite sure you can see the difference between the quindecim fry and any new fry hatching now – they will be much smaller.
I have often different size fry in my tanks, – its quite easy to see when there are ‘new babies’ around.But of course – eventually you need to catch them out before they mature, – and if its a bigger tank than 20 liter, well, – then it is always a hazzle. But its possible 😉 .. you just need to empty the whole tank, though.
I can see that in some way its quite interesting what will happen – but on the other hand 🙁
Stefanie, – first of all, – lets say they develop, – which I also doubt – but if there are already quindecim fry in the tank, these will be quite different in size by now. You will be able to see which are which.
And then I would also say, – if it was me, – I might interfere now. There might be eggs but they havent developed yet. And I would say, do you want to really go on and take the risk they do develop ?
If you destroy whatever nest, and fix the ‘lady-situation’ – theres a good chance the male will mate again tomorrow and have new eggs hatching.
I dont know if there is any knowlegde regarding whether it is possible for these fish to interbreed, if theres no knowledge you could say it is valuable information. But I would think this situation would have likely happened before, so there must be some knowledge.
Quindecim is such a different species, I doubt they would be able to interbreed.That is really interesting Steff, thank you for writing that. Its excatly what I experience, females dont show at all, not even for feeding, – all I see is a happy male 🙂 ..
I have not ever seen this before with new paroes.Thank you Peter, – but that is really interesting to me.
I always keep paroes in pairs as well, and my observations are really just that, – observations which I wasnt sure had any meaning, but it still has influenced my own practise.I will keep having paroes in pairs for breeding, I am not at all arguing against that – but I think for me its an important knowledge now. Like I have these new p. tweediei, which I have seperated out in 3 tanks, 3 pairs, – but they show no interest in each other, their activity level has decreased quite dramatically from when they were all six together, the females hide all the time, to the point of me getting worried, and one male showing slight signs of odinium.
And I have been thinking in my mind quite strongly if I should put them back together again, because then they seemed to be quite well and fine and lively. These were wild caught fish as far as I know, so maybe being suddenly without any flock is unfortunate for the normal development and their well being ? Who knows ? 🙂 Interesting :).
I am not talking for that one should keep a paro-tank as close to nature as possible by for instance having bettaes etc – but more about that it might have some importance when having fry grow up healthy etc – then this knowledge could be helpful in a way.But I am getting a bit beyond the initial question of PatrickG’s about fry growth 🙂 .. but very interesting indeed.
My experience is that some species takes much longer to mature. P. parvulus is one that takes the longest in my experience, whereas a species such as p. nagyi seems to mature quicker.
However I am also not sure if other things may influence the growth, I have no real observations.
My paros share mostly the excact same conditions – except sometimes the amount of fish in one tank.
The sort of very non-scientific observations that one does in a private setting are interesting but very unprecise. For instance, I would say my ‘practise’ now with p.parvulus is that I would avoid taking young fry from the ‘birth tank’ too soon, EVEN they look quite big, – and I would not set them in a tank with few fish. I think my experience has taught me that the fry I leave in the tank, even when there are many grow quicker and more healthy that the fry I take out and seperate in a small flock.
I separate because I think that it is better for fry to have plenty of space etc – but the fry I have done this with have not developed as good as the ones that are still in a kind of ‘flock’.In the same kind of ‘manner’ (very uncertain observation) I would also now avoid if possible to have one paro alone in a tank. It seems to be my experience that having a lonely paro equals more likelyhood of illness. This makes me also wonder about what we really know about the nature of paros in not being a flock fish. I know they are not, but to me it seems the flock has some importance in their wellbeing.
Anyway 🙂 .. just my two cents.
PatrickG wrote a reply here, which I have moved to create a new topic.
You can find it here
https://parosphromenus-project.org/en/forum/4-Breeding/1436-size-and-age-of-young-paros.html
