New Nitrate theory

[tmz]

<a href=showthread.php?s=&postid=15073303#post15073303 target=_blank>Originally posted</a> by capn_hylinur
How do you handle a guy on here that is bent on trashing you whenever they get the opportunity
He just told water keeper to buzz off "his thread" too.

Tmz---this even gets my patient keyboard edgy

http://www.reefcentral.com/forums/showthread.php?s=&threadid=1641369&perpage=&pagenumber=3

I hate ich threads. Glad you and Waterkeeper have it figured out so I can skip it.

Two words: quarantine and aggressive treatment.

 

[tmz]

<a href=showthread.php?s=&postid=15073442#post15073442 target=_blank>Originally posted</a> by ctenophors rule
eh! its aboot time i find another canadian on rc!

capn hylinur, my liniage lies in montreal quebec, what province are you?

Wll its' not part of Canada yet but I'm from Buffalo NY. So hello neighbor. BTW Is it against the RC rules to say aboot? If it's not it ; it should be...

 

[Aquarist007]

<a href=showthread.php?s=&postid=15074032#post15074032 target=_blank>Originally posted</a> by tmz
Wll its' not part of Canada yet but I'm from Buffalo NY. So hello neighbor. BTW Is it against the RC rules to say aboot? If it's not it ; it should be...

eh like don't make fun of our accents---or we will remove our Tim Hortons from your state
beauty eh

 

[Aquarist007]

<a href=showthread.php?s=&postid=15073442#post15073442 target=_blank>Originally posted</a> by ctenophors rule


capn hylinur, my liniage lies in montreal quebec, what province are you?

there are lots of us Canadians on Reef Central---nice to chat with you
my parent(lineage) are buried(lie) in Hamilton Ontario

 

[tmz]

Scott , I'm sorry , I couldn't live without Tim Horton's coffee. Please don't move it.

 

[Aquarist007]

<a href=showthread.php?s=&postid=15074821#post15074821 target=_blank>Originally posted</a> by tmz
Scott , I'm sorry , I couldn't live without Tim Horton's coffee. Please don't move it.

and you Americans think you have all the control over us:lol:

leave steel plant alone in Hamilton and I'll see I can talk to Ron Joyce.
(Ron Joyce lives right across the bay from us )

 

[redtop03]

cap'n,thinking about you patient keyboard being on edge,I had to go add my $.02 worth to the no QT thread couldn't stand it any longer

 

[Konadog]

This thread has been nominated for "June's Thread of the Month". Please take a moment to read each nomination and vote for your favorite.

Vote for Thread of the Month

 

[hottuna]

vote for this thread !!! its the only real truth out there for the sand bed debate...

 

[wooden_reefer]

This is not too amazing.

The coil denitrifier is not extremely anerobic. The coil's diameter is not overly small. It works to some degree if only hard to maintain for long.

I think it is best to give medium of various porosities and varying external flow rate (with wakes and cervices that slow water flow) and allow the various bacteria to choose where to colonize.

 

[wooden_reefer]

I read that at least the studied denitrification occurs best at ORP about 200 MV.

This is not extremely anaerobic.

 

[wooden_reefer]

The question is how to achieve this right degree of low oxygen level.

Water that is stagnant is not necessarily low in oxygen. The O2 that the water once comes with still has to be depleted.

What depletes it? Do you think that nitrification is the predominant means that O2 is depleted? What other major aerobic activity is there in the aquarium other than nitrification? There is aerobic decomposition but this activity may be dwarfed by nitrification, is it not? I don't know.

If nitrification is the predominant means of reducing O2, then nitrification and denitrifiation cannot best occur at two remote chambers but in close spatial proximity.

 

[wooden_reefer]

One more consideration is that if the sand in a DSB is so fine and the depth great, there is no forced bulk transport, only simple diffusion. Not enough NO3 and/or organics may get to all the interior. Even if it works the process rate has to be quite slow.

 

[wayne in norway]

If it's that fine it's called silt. If the flow is adequate then even very fine sand will have advection for some inches. Flume tank experimentation demonstrates that. How fine/deep are we practically talking here?

 

[Aquarist007]

<a href=showthread.php?s=&postid=15266482#post15266482 target=_blank>Originally posted</a> by wayne in norway
If it's that fine it's called silt. If the flow is adequate then even very fine sand will have advection for some inches. Flume tank experimentation demonstrates that. How fine/deep are we practically talking here?

in that situation isn't the role of small invertebrates even more important for transfering and consuming nitrates through the levels of substrate?

 

[wayne in norway]

Yes, depending on what they do. If they potter round the surface then no, not really, if they burrow into it, then locally round their holes, yes. I'd still doubt they do much to aid bulk flo' thro', but I haven't looked at that much. You'd need some real dynamic numbers then on how many worms per cm3, how far they burrowed and so on. Incidentally I bet there is pretty poor diffusive flow thro' silt beds.

More to the point tho' we're talking deep sand beds here, not deep silt beds. I don't think many people would have the patience to try and tweak tune a silt bed i nthe same way as a sand bed. However people do use silt beds, it's called miracle mud . There the macroalgae is the source of export, but the fine grain size and limited flow means there is ammonium reduced from nitrate at a very shallow depth and made available to the algae (optimising take up). But that's a whole new discussion

 

[Alchemist007]

Nitrogen cycle is not that just simple, if you want to have real complet class of nitrogen cycle you can study this web link, and the references too.

http://www.eoearth.org/article/Marine_nitrogen_cycle

 

[syedjilani]

Subscribed

 

[tmz]

Thanks for the link Alchemist007