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whats this all about, anyone know?
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BIO DIGEST
#2 Guest_jacksok_*
Posted 21 April 2009 - 06:22 PM
It's just a bacterial culture for your tank, similar to the offerings by Korallen Zucht or Fauna Marin. The idea is that over time the bacteria in your system will tend to move towards a near monoculture, with just a few species dominating when a broader collection would give better denitrification. Re-dosing a mix of strains on a regular basis helps prevent this.
You can think of the Prodibio range being a sort of Light version of Ultra Low Nutrient Systems (ULNS), in that it doesn't include an additional carbon food source for the bacteria, or a zeolith media. It's therefore much slower acting and I suppose gentler. With the FM and KZ its quite possible to drop nutrient levels too abruptly for the corals to adjust if you aren't careful.
Keith
You can think of the Prodibio range being a sort of Light version of Ultra Low Nutrient Systems (ULNS), in that it doesn't include an additional carbon food source for the bacteria, or a zeolith media. It's therefore much slower acting and I suppose gentler. With the FM and KZ its quite possible to drop nutrient levels too abruptly for the corals to adjust if you aren't careful.
Keith
#3
ben 
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Posted 21 April 2009 - 06:47 PM
ah ok. so this has a broad range of bacteria in each container?
this may be a silly question but dont bacteria need to be "acclimatised" in the same way fish/corals do. ive often wondered this with live sand that can be bought.
if not, why not?
this may be a silly question but dont bacteria need to be "acclimatised" in the same way fish/corals do. ive often wondered this with live sand that can be bought.
if not, why not?
#4 Guest_jacksok_*
Posted 21 April 2009 - 09:05 PM
Yep. As far as I can make out the accompanying Bioptim product is a mix of amino acids and vitamins that should encourage those bacteria to grow.
On your point about acclimatisation, bacteria are tough as old boots. You can find them living in the extremes of arctic wastes, and in underwater volcanic vents. The wet "live sand" we see touted around are a bit of a con IMO - all sand, wet or dry, is covered in viable bacteria unless its actually been sterilised. Bacteria can lie dormant for long periods until conditions become favourable whereupon they will become active again.
You will find though that over time different conditions will favour different bacteria, which brings us back to the maintaining diversity rationale put forward by KZ, FM and Prodibio for re-innoculating our tanks with a broader range of bacteria.
Keith
On your point about acclimatisation, bacteria are tough as old boots. You can find them living in the extremes of arctic wastes, and in underwater volcanic vents. The wet "live sand" we see touted around are a bit of a con IMO - all sand, wet or dry, is covered in viable bacteria unless its actually been sterilised. Bacteria can lie dormant for long periods until conditions become favourable whereupon they will become active again.
You will find though that over time different conditions will favour different bacteria, which brings us back to the maintaining diversity rationale put forward by KZ, FM and Prodibio for re-innoculating our tanks with a broader range of bacteria.
Keith
#6
ben
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Posted 22 April 2009 - 06:21 AM
i see what your saying about the bacteria living in harsh conditions, but dont they evolve to cope with where they live. if you took bacteria from a volcanic vent and put it straight into the sea at the arctic, would it be able to survive?
#7 Guest_jacksok_*
Posted 22 April 2009 - 06:29 AM
Probably not that extreme! 
But many bacteria seem able to endure pretty large variations in conditions, certainly larger than most if not all of the other livestock we keep in our tanks, and when things do get too tough can effectively go dormant for extended periods until conditions pick up - which is why that bag of dry sand should be just as "live" as the wet type.
Keith
But many bacteria seem able to endure pretty large variations in conditions, certainly larger than most if not all of the other livestock we keep in our tanks, and when things do get too tough can effectively go dormant for extended periods until conditions pick up - which is why that bag of dry sand should be just as "live" as the wet type.
Keith
#8 Guest_jacksok_*
Posted 22 April 2009 - 06:54 AM
Shultz, on Apr 22 2009, 07:12 AM, said:
I presume that seachem's stability is along the same lines then?
Shelton.
Shelton.
I'd guess it contains aerobic and anerobic bacteria, but whether it contains more than one strain of each? Who knows?
Would be nice if they listed on the bottle what was actually inside these things. Don't imagine that will ever happen though!
So while following similar principles, there could well be differences in the actual choices and number of strains of aerobic/anaerobic bacteria used in different manufacturer's products, which may consequently have an impact on how they work.
Keith
#10
norman
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Posted 23 April 2009 - 08:47 AM
hello all, after reading this, in theory you should be able to colonise your tank or re- colonise with a handfull of sand from the beach, so why sell additives, i suppose with additives you only get beneficial strains, but at the end of the day who can check to assertain what they are buying. cheers, norman. 
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