bio filter
I see. Well, today’s research showed that this is a common problem, and since frequent drastic water changes with gravel siphoning aren’t getting it under control, I ordered a eheim sludge extractor and gravel cleaner on sale from Petco. It is a basic battery operated gravel vacuum, but it gets particularly good reviews. I also had a discussion with someone at River City Aquatics, and he suggested that I could change the filter, which has been in place for five or six weeks, or add a layer of polyfilter or fine sponge medium, and we agreed it would be a good idea to add the layer of extra filter medium a week or two before changing the filter. It’s a Penguin and has the biowheel.
I could eaasily have the filter stirring up the water more, but the fish hate that! I so have a long airstone along half of the back of the tank. It may be keeping the debris away from the power filter.
Yours, Dora Smith Austin, TX tiggernut24@yahoo.com
Category: Philippines Internet Koi Society
