Are you saying that over time zelolite acctually reduces in efficiancy whe it comes to storing ammonia Randy ?Thanks Dave, but that doesn't answer any of the questions I asked.
Years ago I had a highly stocked 100 gal aquarium and used zeolite in the external filter. What I didn't like about it was that the zeolite had to be serviced (recharged) regularly (monthly if I remember correctly) or I would get spiking ammonia levels if I ignored it too long. I changed the filter over to a straight biological filter (a rather large one) and my ammonia levels stopped spiking and the biological filter rarely had to be maintained, in fact I don't believe I ever had to do anything with it once it was set up.
I can see using zeolite if you suddenly have a large increase in ammonia levels for some reason (dead fish, sudden large increase in fish load, etc...), but it doesn't make sense to rely on it on an ongoing basis when there is a better way. It's like the difference between powering some important electronic equipment with solar cells or rechargeable batteries, one takes care of itself, the other you have to take care of. Except that in the case of using zeolite the rechargeable batteries could actually reduce the efficiency of the back up solar cells. (eg; starving the bacteria colony of their full potential growth)
Thats something weve never looked into before now and so will have to ask questions about it , nver used it before we ent into the pond from indoors but I've seen no such reduction in its ability to remove ammonia from the water, plus have had no problems with my other readings since weve been using it .
We use a 5kg bag as shown in this :-
http://www.absolute-koi.com/subcat333.html
Basically they dont say anything about watching out for any specific problems caused by the use of zeolite in the pond .
Dave
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