[9acca9 (OP)]

Hello everyone.


I tried to make a "doctor chihiros device" that is supposed to be a device that by electrolysis would help inhibit algae in an aquarium.

I made a "diy" version of hundreds of videos on youtube.

It is very simple: two stainless steel metal networks are used facing each other, without touching each other, and they are each connected to a pole (positive or negative) of a transformer. This generates a lot of visible small particles.


Now, in the middle of the network, red particles began to be generated, with just a few minutes of use ... as if it were rust (for now "stainless steel" is not seen to be rusty ... if this is possible, but these particles are seen, which are then pushed by the same bubbles into all the water in the aquarium).


Rust is not good in an aquarium, it can kill fish, etc. So I would like to be sure of what is happening here.

Aquarium water is tap drinking water, which I also add calcium chloride and magnesium sulfate to increase the hardness of the water (which is what my fish need). calcium chloride may be releasing chlorine by this process ??


I saw that this red is generated to several (in YouTube videos), although not many show it in the video where they teach you how to do it. What can this be red? Can I make this same device for electrolysis with two aluminum nets? If so, what kind of reaction could happen in the water?

The most important thing for me is to know if I am generating chlorine (which is deadly), iron oxide (which is deadly) ... or if you can tell me what is happening.

Thank you very much to all!


(this is a translation, i dont speak english)

[Bored chemist]

Hello
Do not worry about the translation. It is clear enough.

The red colour is probably rust.
Stainless steel does not usually rust, but in an electrolytic cell it will.

[9acca9 (OP)]

Oh thanks.
so, what can i use to avoid this rust?? i can put a bar of carbon for example or aluminium?? And in the other hand, this can make chlorine from the calcium chloride?? chlorine is poison for the fish...

Thanks!

[Bored chemist]

I am not sure.
It is likely that any chlorine which is made reacts with the steel.
That is why it rusts.
A friend of mine knows more about aquaria than I do.
I will ask her.