What is this stuff? : D

I for several years leading a 300l brackish water pools with fluctuating 6-10g / l salinity and actually think nothing at all of dressers or other chemicals.

In the basin there are 3 adult green pufferfish, an in pupertären age and 2 small babies.
In addition there are 2 Harnisch catfish and even 4 relatively small siamese catfish, which soon emigrate to a 1500l tank due to their expected size.
Otherwise, only 4 fork tails propel good humor around the basin.
Should the composition of the fish you look like arguing, but I never could find any Agressivitäten among fish.
Also this alleged Schwanzflossenabgebeiße does not occur to me.

Easy Life is now already for some years a secret tip among aquarists, only what happens in the short Mittelchens this pool after my application, my all is male worth a review.

However, my main focus was on the ball and how the fish reacts to it is just amazing.
Is there in the remedies coke or a sexually stimmulierendes stuff in there or what?

First, the pufferfish drew their "upper and lower lip" back and showed the true splendor of their mandibles.
This they did after adding several times and especially in the group stage, so if several kufi's met in the basin.
This retraction I could in all these years in this violent form not yet experience and I just watch these animals very, very often.

In the adult puffers can certainly recognize whether it is a male or female, contrary to many alleged reference books.
The males have a significant whiter belly and act by her entire circumference, much less fat than females.
Also, contrary to the trade press, the green puffer fish are not loners. Your group behavior is socially, except when it comes to eating.

So about 1 hour after the addition of Easy Life, I could not believe my eyes. A pair (kufi's) showed distinct courtship, as it is rarely described in the Internet.
Also something I have in all the years never to experience.
I will still make me no hope of breeding because of possible ground spawning usually has 100% failures, especially as a courtship not head straight for spawning.

Anyway, what kind of stuff is that?
I'm first completely excited.

Supplement 13.03.2014

Logically, it remained in the courtship behavior of puffers. A successful breeding of green pufferfish is anyway far nothing from DE known.
This illusion I have not given myself, because even when it comes to the actual spawn once, the loss is 100%.