Activated Carbon causes holes in the head in some fishes ?

[aquaholic]

i priodically use pelletized cabon

 

[mcblack]

thanks for sharing info, thats the problem with activated carbon have to change it periodically

 

[Thomascl]

good info thanks

 

[Dirty Fish]

That's not frequent enough ckk125. Activated carbon becomes chemically inactive after 4-6 weeks.

 

[Sunpoe]

When exhausted, it will release the "waste" back into the water.


by: Kelvin Fong www.arowana.com

 

[slammer]

I have heard literally for years that carbon will leach most all of the impurities it initially soaks up back into the tank over time thus neccesitating a fairly frequent change. If your filtration system is less than optimium and you do only minimum water changes this will be far more apparent than if you have a well designed, efficient system and you do frequent water changes. I don't use carbon or any other chemicals in any of my ponds or tanks. I just don't see the need. I change 25% weekly in the tanks and bi-weekly in the ponds.

Slam