I was cleaning my fish tank filter, took out a pack of activated carbon, the bag surface is dirty, so I washed with water, and found out that the water is black? For a period of time are black, I do not know whether it is because of the long time to fade it? Is this a valid term? If so, how long? By the way, I found that the sand inside the tank is black, it is not clean, and can only be thrown away
If it has been put into the water, please note that one to two months to restore him once, how to restore? Take out the activated carbon, rinse it under the flowing water, and then take the sun for two days, then rinse it with flowing water.
Activated carbon for a long time there will be a slight fade, but the difference is not great.Some matters needing attention in the use of activated carbon in aquarium:
The general bath, put on activated carbon adsorption of residual drugs, two days after take out, not more than a week, placed in the top of the filter can be.
Please note that the activated carbon tank placed the most important point, not to have been placed in the filter, although he has the ability to absorb a large amount of harmful substances, but for a long time, there will still be saturated, then, not only can not absorb material, it will release harmful substances, affect the water quality in the cylinder, a lot of people fish for a long time, there is water for filter action, but it is for this reason cylinder,
