um02122 wrote:Am gasit o chestie pe care n-o stiam cand am citit articolul despre MHLLE din reefkeeping magazine

"Stray Voltage and Ground Probes:

Of all the theories regarding MHLLE, this is the one that I have the most trouble believing, and, after subsequent readings by David Kessner, it would appear my gut impression turns out to be correct. The phenomenon that we aquarists refer to as stray voltage is actually capacitive coupling; the so-called cure of using a grounding probe actually causes the effect to occur. The abbreviated description of this occurrence is that any electrical device in an aquarium, be that of a heater, pump, etc., acts as a resistor. These are sealed in plastic, glass, or some other nonconductive material, in electrical terms - an insulator. Once the aquarist places a ground probe in the water, another resistor is created by completing the circuit and turning the water into a second resistor. Two resistors separated by an insulator is capacitive coupling and this allows electrons to flow out of the tank through the ground probe. The point being, without the ground probe, the circuit is not completed and no charges flow. Hence, the "cure" for stray voltage and its impact on MHLLE by the use of a ground probe is what causes the stray voltage in the first place. Without the ground probe, there is no stray voltage.

Now, I am neither an electrical engineer nor some Radio Shack technology buff. I am a fish geek. I apologize if my laymen's explanation bothers some. If you are interested in reading more, please make use of my listed references and delve into the discussion on capacitive coupling, resistors, insulators, induction and other things that aren't particularly interesting to me. Otherwise, if you are like me, feel free to skip to the next topic with the knowledge that stray voltage is nothing to worry about with regard to your fishes' well-being.

While I may be making light of stray voltage and grounding probes, I do not mean to discourage their use in general. I am specifically referring to them only in the confines of a discussion on MHLLE. Ground probes and GFI outlets should be used in all aquariums, but not for the health of the fish. They are for the fishkeeper's protection. Electrocution is a distinct possibility, and a ground probe along with a GFI outlet could save your life one day, so use them."

Am discutat putin pe tema asta cu ceva timp in urma aici:

http://www.acvariu.ro/forum/posts/list/0/22342.page

Concluzia mea e ca e bine sa ai proba de impamantare, dar sa o conectezi doar cand lucrezi la acvariu.

As completa eu, si sa folosesti numai prize cu impamantare la acvariu.
Si corecta concluzia ta

Un film interesant despre frozen PE mysis.

Drool

online aquatic diary

120x25x25cm nano reef

Am avut pana acum urmatoarele specii de Amblyeleotris:

- Amblyeleotris guttata (pereche)
- Amblyeleotris aurora
- Amblyeleotris wheeleri (pereche)
- Amblyeleotris randalli
- Amblyeleotris latifasciata (pereche)
- Amblyeleotris stenitzi
- Amblyeleotris diagonalis

Sper sa scriu un articol despre aceasta familie de goby. Am strans de-a lungul timpului poze si filme foarte faine si o experienta destul de vasta.

Amblyeleotris latifasciata

Amblyeleotris randalli

Amblyeleotris stenitzi

Amblyeleotris diagonalis

Amblyeleotris guttata (mascul)

Amblyeleotris aurora

Amblyeleotris wheeleri

Cred ca imi plac acesti pesti pentru ca imi seamana:
- frumosi
- inteligenti
- modesti

Ieri am fost pana la Braknell. La intoarcere, am facut un filmulet pentru ca era o vreme superba. Am prins si vreo doua minute jumatate in care doi idioti se sicanau in trafic.

De suflet