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FAQs on Carbon Filtration, Placement
Related FAQs: Carbon 1,
Carbon 2, & FAQs on
Carbon: Rationale/Use,
Types/Qualities/Selection, Renewal,
Negative Reactions, Sources/Brands, &
Marine Chemical Filtrants Related
Articles: Marine Chemical Filtrants,
Zeolite Filters: A Discussion of What Zeolites Are and How They
Function by Jens Kallmeyer,
The ZEOvit System: A New Concept in Reefkeeping by Alexander
Girz, |
In a convenient, porous setting... in an area of continuous water
flow |
Carbon (How to employ without
a sump?) – 10/23/09
Crew,
<<Matt>>
I know you have yet to get back to me from my last query,
<<…?>>
but I have a quick one here.
<<Okay>>
My water is yellowish, bulbs are brand new 10000K daylight PC's. It is a
newer tank with ammonia = 0, nitrate = 5, and nitrite = 0. My filtration
consists of an AquaC Remora using a MaxiJet 1200, 60lbs of live rock,
and 3 Koralia powerheads. I want to use carbon on this system but have
no flow path to place it into.
<<Mmm…no sump eh…perhaps then a canister filter?>>
If I buy a canister filter, can I remove all the media and just leave
the carbon in there and replace monthly?
<<Ah! Yes indeed…though there’s often debate as to the length of time
carbon remains effective. There seems to be a growing understanding that
carbon is “used up” very quickly…and depending on the type/quality…is no
longer effective within hours to days of introduction to the system. It
is also thought that as an adsorbent versus an absorbent, that the
carbon can begin to “release trapped molecules” once it becomes
“saturated.” So… Some hobbyists prefer to remove the carbon after a few
days to a week and then let the canister filter just run empty (for the
added flow) for a few weeks until the next batch of carbon goes in. Just
something to consider…>>
If not, where could I place the carbon? I have no sump because all sides
of the tank are tempered and cannot be drilled and I don't trust a
siphon overflow. Thanks for your input.
<<The canister filter sounds like your best option here>>
Matt
<<Cheers… EricR>>
Re Carbon (How to employ without a sump?) – 10/23/09-
10/25/09
Just my two cents to add. I find that the Marineland HOB filter is a
great way to use carbon in a sumpless set-up. Is more convenient to
service than a canister filter and very reasonably priced.
http://www.premiumaquatics.com/Merchant2/merchant.mvc?Screen=PROD&Product_Code=ML-MAGHOT&Category_Code=marineland
James
Filter Selection 7/5/09
Hi crew,
<Hello Marc>
I have a 75 gallon reef tank that has no sump. I just want to
run some carbon to assist my Remora Pro. What do you think
would be the best filter to run activated carbon? I'm not looking for
any mechanical filtration, I don't want the nitrate build up, I just
want to run carbon.
<I've always liked the Marineland Magnum HOT. See here.
http://www.premiumaquatics.com/Merchant2/merchant.mvc?Screen=PROD&Product_Co
de=ML-MAGHOT&Category_Code=marineland>
Thanks,
<You're welcome. James (Salty Dog)>
Marc
Salifert -All in one con ASM Media reactor chem media use f'
6/28/09
I've been thinking of switching to Salifert- All in One from ESV -B
Ionic as it says that you only have to add this once a week , compare to
ESV's everyday dosing. I've been searching the accuracy of this product
in your site and could not find, if this really work as stated on its
label...or this is just one of those advertising gimmicks?
<Really any Ca/Alk supplement can be dosed once a week. But think of
your coral's needs. The more they use, the larger the swing in your
water make up when you dose once a week. Dosing daily keeps your water
much more consistent.>
Also, I have purchase a media reactor (ASM med 1000) , and I'm wondering
if I could use Chemi pure with this?
<Sure.>
Just take it out of the bag and pour it on the reactor chamber?
<I would leave it in the bag to keep it all together.>
The instruction said to use pump that has a 150 gph , do you think I can
get away with Maxi Jet 1200 w/ a 140 gph?
<Yes, but the MJ 1200 is rated for 395 I believe. You may wish to choke
this back a bit with a valve, but not life or death with the Chemipure
left in the bag.>
Because I have 2 of these units that I have in my garage (used this long
time ago before the Hydor's came along).
And lastly, does the media has to be sandwiched by the two foams ?
<Not if left in a bag.>
And where is the best way to place the intake and out take tubing?
<Ideally intake before your pump return chamber, outtake in the pump
return chamber.>
I have a 30g sump and 100g main tank.
Pls advise...and thanks in advance. KEEP ON REEFING !
Nemo
<Welcome, you too, Scott V.>
Activated carbon optimal flow
rate for removing Cupramine
Activated Carbon Flow Rate 6/1/09
Is there a certain flow rate that works best for activated carbon? I'm
setting up my own PVC construction which will basically hook to a Rio
submersible pump that does about 600 gph. I want to run the pump
through just a small piece of vinyl tubing, then into a chamber
constructed out of a 4" piece of PVC with an end cap that has a couple
small holes drilled in the cap, real small holes actually so that the
carbon cant get pushed out.
< Sounds good so far.>
The PVC chamber will be filled with carbon then dropped into the sump.
I'm basically just trying to get a good way to move a lot of water
through carbon, I want to clean all the Cupramine out of my tank within
a day or two, or at least really significantly reduce the levels...
< Could take longer than a day or two. Depends on the levels present.
Even then you will probably never fully remove it. >
So my question is about flow, will activated carbon work as well at high
speed water flow as it would at low speed? If not, I'll have to figure
out an easy way to throttle it back, which shouldn't be hard through use
of a splitter and a gate valve on the other end to control how much is
actually pumped through the carbon.
< No, activated carbons efficiency is dependent on contact time and
surface area. With lower flow and smaller particles being the most
efficient.>
I'd love an answer to this question, I've searched Google and WWM and
cant seem to find one. Grant
< I would install the gate valve and throttle it back to a moderate to
lower flow. With the amount flow being partially dependent on the size
of the aquarium. GA Jenkins>
Activated Carbon Placement 5/3/09
Hello there peeps.
< Frank >
Had a quick question for you if you don't mind.
< Don't mind a bit. >
Can I put a bag of activated carbon inside my filter sock where my water
enters my sump from a overflow or should I put it in the return area of
the sump near the pump that returns water to display? I thought putting
in the filter sock might work best but as always , I value your
opinions. Thanks for all your hard work. Frank
< Putting it in a filter sock is the way to go. The more water you can
force the activated carbon to come in contact with the better. Hanging
it in near the return pump will work but will not be as efficient. G A
Jenkins >
Chemical Reactor, JamesG endorsement 2/16/08
Bob,
Just a note here regarding those who want to incorporate
chemical media into their system without using canister filters, etc.
I've been using this reactor for about one week and it's the best thing
I've seen since sliced bread, very well designed. Will easily hold two
units of Chemi Pure and etails for 39.95.
http://www.aquariumfiltration.us/simplicity-fbr.html
James
<Thank
you for sharing James. BobF>
Carbon placement 6/16/08
Happy daddy's day to all!!!
<Yikes...
am looking in the mail box for cards from far away as usual...>
Three
quick questions... is it better to put the carbon bag (Chemi pure) in
the overflow box,
in the sump under the drain by the sack or put it
in the sump and place a power head
(Maxi Jet 600 or 900) for added
flow?
Thanks/Jun
<I like to keep "things" out of overflow
boxes... too much chance of disasters with reducing, blocking flow
there... I like to place some sort of mechanical media (Dacron batting
or such) over this fine product and other chemical filtrants (to reduce
clogging)... Bob Fenner> Carbon placement
Hello to all. I have a question about the use of carbon filtration. We
have a 40 gal. tank and currently use the Amiracle 150 Wet/Dry Filter
and the AquaC Remora hang-on skimmer. I do 2-3 water changes of 4 gal.
each a
week. I read all the postings I could find on the site about this
before bothering you with a question, so I know the recommendation
appears to be 1x month use of carbon filtration. Right now I have
Fluval carbon filter pads just laying on top of the biomedia, directly
underneath the plastic diffusion plate (which has the filter pad on
it). I can't think of another place to have it that would put it in the
direct flow of water. << That would be fine. >> My preference would be
to use the TMC High Retentive Activated Carbon product in a filter bag,
but I definitely wouldn't know where to put that except the sump, which
obviously wouldn't really be in a flow. Any thoughts? << Yep, anywhere
is better than nowhere. I'd put it there and just leaveCarbonFAQ2e
it there all the time. But high flow is certainly best. >> Thanks for
all the help. I get information from you site all the time. You guys
are the best.
Laura
<< Blundell >> Carbon
placement
Dear Bob and Crew,
I have a 90 gallon reef with a
wet/dry and newly added refugium with a DSB. I thought I would start
using some carbon in my system. Do you think it would be a better idea
to place a bag of carbon in the top of the drip tray or should I use a
mechanical filter (Hot Magnum) with carbon in it for an occasional
overnight cleaning? Thanks!
<Mmm, would work fine in either
placement... I'd likely go with the canister filter for the added
circulation and mechanical filtration. Bob Fenner> Anemone/
Turtle Weed tank, GAC use, Chlorodesmis comp. 2/27/07
I tried what you suggested, but despite the searches I still couldn't
find anything relevant. Can you please just give me a direct answer or
at least refer me to a specific FAQ?
Thanks in Advance,
CCS
<Mmm, perhaps more of a
specific response... There is some value in the use of activated carbon
in a setting as you propose... some for absorption, more for an adjunct
to bio-filtration... I would use "a few ounces" of GAC in a Dacron bag
(that can be easily re-used), changed out once a month or so... Sandwich
this twixt some mechanical filter media (to keep off detritus)... And
the Chlorophyte genus Chlorodesmis ranks low in relative
allelopathogenic properties... perhaps a 3 out of 10... I would not be
concerned here with potential effects with Catalaphyllia... BobF>
Chemical filtration placement question for a hang-on refugium
6/24/07
Good evening,
I first want to thank you for your site
and all the great information, I don't know if I could have survived
this hobby without it. My question is as follows: When adding chemical
filtration, specifically Chemi-pure, where should I place it in a CPR
hang on refugium/ skimmer unit. I just purchased Chemi-pure and had it
in the compartment after the skimmer and now it seems that the Caulerpa
in the refugium is turning white and breaking apart. I thought about
putting it in front of the return portion of the unit,
<Mmm>
but I
am fearful that the copepods and stuff that is supposed to leak into the
main tank from the refugium wont.
<Not to worry re this...>
The
only filtration I currently have is live rock and the CPR and would love
to add the Chemical filtration, but the only option I have is to place
it in the refugium. I used to use carbon in my Prizm and thought it
really helped. I would therefore like to continue with the added
filtration with my new set-up.
Thank you in advance for all of your
help!!
Cory
<Somewhere in the filter flow path, though not
blocking same... toward the exit, return, though most anywhere in this
unit would be fine... I would only switch such a product out once a
month... using two would be best, leaving one in while changing the
oldest each interval. Bob Fenner>
Carbon in Prizm
Many thanks for your help so far. I wanted to
know if I can put a small bag of carbon in my Prizm skimmer. Will this
effect skimming?
<Yes, probably for the worse.>
I know the skimmer
is not the best but I bought it anyway do to only using it on a 20gal.
<Will be fine for a 20 gallon tank.>
I already have a Fluval 204 for
mechanical and filled with TBPC for bio filtration. I have just removed
all of my crushed coral except for about 1 inch and I am going to add
20lbs of LR if I can get it past my wife. Shaun Nelson
<It would
probably be easier/better to place carbon in the Fluval if you do not
already have it packed. I prefer to use Boyd's Chemi-Pure in canister
filters. If not, a simple hang-on filter is a cheap alternative. -Steven
Pro> Carbon
In your book "The Conscientious Marine
Aquarist" you say it is best to place chemical filtration media such as
carbon in polyester bags and arrange there placement in a pressurized
water flow.
<And I would agree.>
You also say the worst is to just
throw the bag and contents into the sump. If all I have is an overflow
box and a sump is it better to put it in the sump than to not have any
at all?
<You can probably rig something so that the overflow water is
directed into the carbon. Just do so such that if and when the carbon
becomes clogged the water can continue to drain down unobstructed.
-Steven Pro> - New Tank Set-up, Follow-up -
Thanks for
the reply.
<My pleasure.>
With this setup, do I need to add any
kind of carbon filtration, and if I do, how would I incorporate it into
this system.
<You can... I did... is quite easy to just place a
micron bag filled with carbon in the sump, leave there for a little
while... couple of days.>
Thanks again. Mitch
<Cheers, J -- >
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