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Posted by JR
on 11/3/2009, 2:05 pm, in reply to "Good, better, best"
162.111.195.34
No question d, BBs work to remove ammonia and convert it nitrIte and NitrATe as well as any other design. And if the story ends there, then the story ends there.
I use ehiems on most of my aquariums. They are closed canisters. Am I a hypocrite? No, it is about the application. This is the detail and the devil is in the details.
The greatest appeal of Closed containers is the physical foot print for removing ammonia per square inch. And BBs are made as a mass marketed off the shelf unit for this reason. The other designs are large, expensive and in the case of gravity systems, much easier to install. But I'm talking about performance and not convenience.
Your idea of bringing people and individuals names into this conversation serves no real purpose except to polorize. I could easily bring fifty breeders and high end hobbyists from around the world who do not use BBs and point to their stock and results- indeed the winning fish at the very successful Florida ZNA show are breed and initially reared by Japanese breeders who do not use BBs. So this is all a false argument.
The debate has long been settled in the marine hobby. There is no real debate any more as the science prevails. The koi hobby is more primitive and less based in science so these things are debated among beginners. We saw this on the old "other Parish' when Dr J promoted a BB he was involved with. This sparked a war of sorts and set the hobby back ten years. As some of us moved on and began deligating the BB to a 'polisher' or the junk heap, many of us began following the Japanese and British ways of filtering koi ponds. Ironically that teaching is being lost even in the UK as BBs turn up there as a polisher and alternative to big inground filtration.
In the aquarium hobby, corner filters are used as an entry level filter. More advanced hobbyists use more advanced filtration. Yet they all remove ammonia. It really depends on your goals,scale expectations and pocket book. Corner filters are not evil! And they work well in certain applications. Yet no one beleives they can perform as well as a TT and fully equipped sump design.
truly, even inpond ungravel filters are better than just gravel bottom filters. And in some applications fine gravel is worse than corse stone beds. It all depends on goals, expectations, scale and pocket book.
So for the smaller water garden ( 1500- 3000 gallons) stocked with goldfish and such, a Bb will perform great. Especially if the goldies are brought in during winter. But for full blown koi ponds * 5000- 25,000 gallons and six feet deep, BBs are used for polishers with slightly negative results in organic management. JR
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