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Hello,
I´m have some P.quindecim. I get eggs without problems in days after I bought this fish during the IGL meeting in Hamburg last month. The first eggs got lost, so I decided to seperate the next eggs i get. One day after the next mating I seperated the eggs from the parents in a small plastic container (as I did it so often about 15 years ago during my first phase of breeding Parosphromenus) The eggs developed very well. I only lost some eggs, which is normal. I addet some Trypaflavin to the watert to avoid fungi.
After some days I started to feed with Paramecium (which I have cleaned with fresh water). Now I have the problem that the small Paros decrease from day to day. I can see that the Paros get attacked by Infusoria. I changed water in the small plastic container every day (with water out off the parents aquarium). Does anyone know a trick to avoid the growth of such agressive Infusoria? What is the reason that such raptorial infusoria start to grow and attack the larvae?
KnutHi Knut,
I had a similar problem.
I moved the fry into a breedingbox in the tank of the parents
with water circulation(like a Gerdkasten). Didn´t lose any further fry.
But they were already around 1 to 1,5cm in size.Volker
This was I wanted to try next, too.
So I will built one which fittes into my small Paro-Aquariums.
I will report if that works with the larvae.
KnutI find that very interesting, I have never heard of such a problem before.
Could this problem sometimes explain for lack of successfull breeding with some paro-couples, do you think ?
I mean, I usually assume that maybe the parent fish might eat the tiny new fry, when I dont see them after the eggs have developed – but if they can also be attacked by infusoria .. then its a hard world for the tiny new fry 🙁 ….Yes Helene. Not always the parents of our Paros are the problem that the eggs or also larvae will not develop. A lot off other things can occur to them. Planaria, Saprolegnia or Infusoria e.g.
(Planaria is always a problem, you don´t see)!
Knuthello,
I think it takes a lot.
I let the P. quindecims make it easy. It works.
The number of juveniles is not as high as the linkeis.
But healthy and developing very well.The young are not fed separately.
The look for the first time in micro-organisms from the leaves and take it very early on nauplii.
MatthiasThe problem of Manticora-Knut has to be taken very serious indeed but I know of no reliable investigation. The information that Coleps spec. could act as destroyer organisms for eggs or larvae is new, at least to me. I think many friends would be grateful to you if you could tell us some more details about that genus, Knut.
If one does not know anything about such causes of misfortune with breeding, one thing is old knowledge nevertheless: the importance of the lowest density of germs possible. In aquaria, a low density is very hard to achieve. Even the best results indicate a density a hundred or thousand times higher than in natural blackwaters. The main reason why blackwater organisms seldom survive for longer in clear waters, at least are nearly unable to reproduce there, is the fact that the density of micro-organisms is in clearwater normally much higher than in blackwater.
We have only one means to influence that density in the direction of reducing it, and that’s pH. If we are lucky, our licorice will successfully propagate in tanks with a pH of 6 or 6.5, hardly more. It will work if we somehow manage to get the micro-organisms remain at a low level. But mostly we can’t. And then only a strong pH-reduction is the way out (4 or even less, German Master breeder G. Kopic once had success with parvulus only after pH-reduction to 3.0).
Knut: which was the pH when you had that bad experiences with destructive micro-organisms?
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