anitapond said:
I am currently treating my 500 gallon pond with Microbe-Lift Ich-Out. I did the necessary water change before proceeding with the second treatment, however, I am wondering
1) if once the treatment is complete, if I could put activated carbon into the skimmer area to remove the chemicals INSTEAD OF performing another water change? Even though my pond is small, water changes take a lot of time!
But, of course, I don't want to "cut corners" at the expense of my goldfish. What do you think?
1) Personally, I equivocate water changes to opening a window in a car to let the fresh air into the car. If you are in the mountains with all these nice fresh air and you're stuck in a van full of annoying family members, then opening a window really makes you feel better with the nice air into the car while removing the old stale, smelly family member air.
However, if you are in a big city stuck on a busy highway and open your window, then the "fresh" air will be that of lovely car exhaust smell filling up your car. Water changes are like this and very dependent on the quality of your source water and what it would take to "clean" the water if there were no water changes.
Water changes replenish minerals (depending on your source water), buffering attributes (depending on your source water), dilutes dissolved organic particulates, dilutes fish toxic nitrogens, and dilutes particular precipitated compounds or salinity or other inorganic chemicals that can only be removed from water changes or special media or an increase in plant density along with a routine of maintaining the activated charcoal.
Water changes are diluting your pond water to more emulate the quality of your water source. If your source water is more acidic or softer or has a higher salinity or has other contaminants, then water changes could make things worse, but, if you do not have an alternative source water, then you just don't have another option, other than using the water source you already have, unless you want to add products (such as buffering agents, absorbant medium, minerals) to the water so to avoid dong water changes.