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Old 02-11-2010, 04:16 AM
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Thanks for sharing that. Just as I thought, the more flow throughput the better the pellets will perform. At a high flow rate the mulm is not going to be visable as the fast moving water will carry away any particals shedding from the pellets.

So how many gph is everyone running through their reactor?
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Old 02-11-2010, 04:20 AM
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Quote:
Originally Posted by Willito View Post
Thanks for sharing that. Just as I thought, the more flow throughput the better the pellets will perform. At a high flow rate the mulm is not going to be visable as the fast moving water will carry away any particals shedding from the pellets.

So how many gph is everyone running through their reactor?
I'm running 900gph and have not had much issues with mulm after I sliced my phosban filter pads I'm half . I would recommend doing this if you are going to use a phosban. Enkmat works too.

What I want to know is, what ever happened to the notion of having too much flow through a media reactor? I thought that too much flow would not allow for enough contact time for the bacteria to consume the passing nutrients?

Last edited by kien; 02-11-2010 at 04:24 AM.
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Old 02-11-2010, 05:32 AM
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Quote:
Originally Posted by kien View Post
What I want to know is, what ever happened to the notion of having too much flow through a media reactor? I thought that too much flow would not allow for enough contact time for the bacteria to consume the passing nutrients?
x2 !
My point exactly, with fast flow how can bacteria have time to consume anything?

Unless the idea behind this (like was mentioned by Ian) is not to get anaerobic, and bacteria will consume what ever is attached to the individual pellet.
I have to report though that bubble algae is disappearing slowly, i used to have quite a bit of it and now almost nothing (!).
But there was one change, i started using Coral Snow and Zeo bak, so i don't know yet if i am convinced, but hey this is fun !
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Old 02-11-2010, 06:37 AM
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ordered mine last night due to this thread. also placed an order with another company for some new digital aquatics gear seeing as ive run out of space on my power bar's. I also has a plan for sponge replacement on reactor that might work out well.
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Old 02-11-2010, 07:06 AM
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I think the difference here is biology, Kien and RuGlu6. Slow flow through a media reactor to increase contact time is typically based on chemical absorption and binding with carbon and GFO. Bacteria on the other hand, in ideal growing conditions, can proliferate insanely fast. It's not unheard of for bacteria colonies to double their population in a matter of minutes. Well, anyone who's suffered through a dinoflagellate bloom in their tank has seen this with their own eyes. This is also why bacterial based ULNS trumps algal based nutrient reductions, for example (not that algae doesn't work, but it grows slower).
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Old 02-11-2010, 07:41 AM
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I think the difference here is biology, Kien and RuGlu6. Slow flow through a media reactor to increase contact time is typically based on chemical absorption and binding with carbon and GFO. Bacteria on the other hand, in ideal growing conditions, can proliferate insanely fast. It's not unheard of for bacteria colonies to double their population in a matter of minutes. Well, anyone who's suffered through a dinoflagellate bloom in their tank has seen this with their own eyes. This is also why bacterial based ULNS trumps algal based nutrient reductions, for example (not that algae doesn't work, but it grows slower).
Ah! That makes total sense! Guess I'll crank it up and strap on a MJ1200 this weekend :-D
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Old 02-11-2010, 01:16 PM
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Quote:
Originally Posted by kien View Post
I'm running 900gph and have not had much issues with mulm after I sliced my phosban filter pads I'm half . I would recommend doing this if you are going to use a phosban. Enkmat works too.

What I want to know is, what ever happened to the notion of having too much flow through a media reactor? I thought that too much flow would not allow for enough contact time for the bacteria to consume the passing nutrients?
I think that falls fro different media. The biopelets probibaly do not need the contact time like Rowa or carbon?
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Old 02-11-2010, 05:02 PM
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I tried using enkamat and found the pellets still get through quite easily. I then used quilting mesh and its working very well in keeping the pellets in the phosban reactor while allowing the mj1200 to flow at max.
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Old 02-11-2010, 05:16 PM
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Sorry, but as someone who doesn't quilt a whole lot, could you please post a picture so I can know what it looks like? Please and thank you?
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Old 02-11-2010, 05:34 PM
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hey Tony
For the record I don't quilt either and i'm sensing a tone of mockery of my feminine side
to prove my lack of quilting abilities, its actually a needlepoint mesh that I'm using. I saw it in the fabric section of any craft store and its been very usefull in many DIY applications. They come in many different mesh sizes too.
Here's a youtube video of what it looks like
http://www.youtube.com/watch?v=30xYy_JlT8Q
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