I solved my problem! :)

The solution is to increase the Volume Samples Override in the RenderStats Section
of the Fluid.

I tried today make new container with basic setup and the effect is the same. For sure the option is to render inividual passes for each container but that doesn't solve the problem.

I tried to put plane behind the nuke fluid. And the result is below.
Its strange for me. It looks like opacity and transparency of fluids are ok. hmm ;/
...

yes the first render was made with mental ray.

Thank you for your respond :) I tried to turn off all lights on my scene but this solution doesn't work. Below I post the link to the image without lights in the scene.

I tried to render in...

I made a nuclear explosion and have a strange fluid transparency problem. See link below. There are also my fluid shading parameters.

How can I fix this? Maybe someone has similar problem?

I...