Effectiveness with long bigger sumps or

I was reading a post on a members new 10ft tank and sump ( which looks excellent IMO ) setup just now when this question popped into my head regarding big tanks ( 6ft? 7ft and above tanks )
The cabinet sump tank design have been kept relatively the same with slight design variations within the sump。 With bigger tanks, the sump is typically just scaled length wise to be in proportion with the tank。 ( which make sense since bigger tank volume- more filtration required。 ) Some members even request for longer sumps ( more partitions ) with bigger tanks, in an attempt to increase media capacity for filtration。
TANK - >; OVER or UNDER FLOW - >; SUMP CHAMBER 1 - >;SUMP CHAMBER 2 - >; SUMP CHAMBER 3 - >; SUMP CHAMBER 4 - >; SUMP PUMP - >; TANK
BUT I was wondering。。。。 No matter how long the sump tank is, the volume of water entering into the sump tank is relatively the same 。 ( with slight variation in volume pending how big inlets or openings for over/underflow and in proportion to the tank size of course )。
So my question is !
1) With first 2-3 chambers of the sump with the BB , filtering ( ammonia - nitrite - nitrate) that volume of water , Would any more partition or media past 3 or 4 chamber make much difference since they are essential down the same line in terms of water flow。 ?
2) Would the water be filtered more effectively if there are 2 small sumps ( separating the line in terms of water flow before combining again) compared to 1 large sump ?
Attachment 29156
Of course, there are many assumptions made and i am not a professional bio/chemist either so do forgive me if there are any major loopholes in my assumptions here。
Just interested to know what other peeps think of this theory/idea ( multiple small sumps to 1 large sump)
==comments==
My preference would be to have a single mutiple chambers sump for 1 main reason。 To complete the nitrogen cycle。
Lets say the sump has 10 chambers, I would hope for the first 5 chambers to work on nitrification and the last 5 chambers to work on denitrification。 This is what hobbyists would like to achieve,MALAYSIA GOLDEN AROWANAsea aquarium near me zero or very low No3。
But 2 smaller sump has it plus point, can do 100% wash on 1 sump and still has 2nd sump running。
>Originally Posted by SY123 My preference would be to have a single mutiple chambers sump for 1 main reason。 To complete the nitrogen cycle。
Lets say the sump has 10 chambers, I would hope for the first 5 chambers to work on nitrification and the last 5 chambers to work on denitrification。 This is what hobbyists would like to achieve, zero or very low No3。
But 2 smaller sump has it plus point, can do 100% wash on 1 sump and still has 2nd sump running。
ideally if the sump can complete the full nitrification cycle, thats the best care scenario

Effectiveness with long bigger sumps or AROWANA Forum BUT given the circumstance of needing an anaerobic environment for denitrification to occur, I highly doubt much denitrification occurs。 No matter what filter media manufacturers might proclaim
They still make claims that their particular media does it simply because they might remove nitrates but ALOT less than what we think, almost minimal IMO。 The conversion of nitrites to nitrates requires oxygen, which starves certain areas of the oxygen, creating small anaerobic pockets ( such as in the cores of the media)。 allowing denitrifiying bacteria to live 。 similar to how live rocks in marine environments help but given media sizes to the volume of water, it is still minimal ( even with big blocks)。
IMO without a coil Denitrator or deep sand/soil bed and plants ( at large enough quantity), helpful denitrification will not occur in a typical fresh water bare tank with sump (no matter how big the sump is)。
But brings about my idea with multiple sumps 。。。。 with a single multi-chamber sump - by the time the water passes thru the first 5 chambers。。。 there is minimal difference in the water entering chamber 6 with the water exiting chamber 10 going back in the tank。 why not just do 2 x 3 chamber sumps。 saves space, media while increasing efficiency and effectiveness。
>Sorry, just confused on how many small sump will operate。 Can provide photo or video on how it works? And some questions,Effectiveness with long bigger sumps or multiple smaller sumps to 1 large sump?sea aquarium near me
1) How the water flow from one to another?
2) Operate using 1 pump?
TIA
>IMHO, the volume of filtration vs the volume of water will be constant whether if you have a sump or 2 sumps running parallel assuming the floor area avail is constant。 For the NO3 variable, the only way to effectively reduce it without adding anything more than the sump and medias is to reduce the flowrate of the pump used。
That said, the other way will be to add additional canisters to filter the water in the maintank not the sump
The results will show
My humble opinion only
>Originally Posted by Hyde289 Sorry, just confused on how many small sump will operate。 Can provide photo or video on how it works? And some questions,
1) How the water flow from one to another?
2) Operate using 1 pump?
TIA
i didnt think out fully the application part。。。 just wanted to see what other pple think of the idea ? of course。。 60L/Hour is just an example in terms of how the volume of water will be split
>Originally Posted by HaoHaoRao IMHO, the volume of filtration vs the volume of water will be constant whether if you have a sump or 2 sumps running parallel assuming the floor area avail is constant。
Precisely my point。。。 thats why I would think having 2 sumps would get more efficient ?
i think its best to leave the NO3 factor out of the discussion since there are still different opinions on the effectiveness of NO3 removal in sump。。。。
Originally Posted by HaoHaoRao That said, the other way will be to add additional canisters to filter the water in the maintank not the sump for a 6 ft tank maybe。。。 but wouldnt it defeat the purpose of having a 8 ft sump for a 10 ft tank if you still have to add canisters ? even for the 6ft tanks。。 if i still have to add another cannister to my 4ft/5ft sump。。。 doesnt it mean my sump is not as effective as it should be ?
>Originally Posted by Arohobs i didnt think out fully the application part。。。 just wanted to see what other pple think of the idea ? of course。。 60L/Hour is just an example in terms of how the volume of water will be split
Hi bro,
IMO, splitting a single waterflow isnt going to help since the amount of waste will not be split equally every time。
Even though you rejoin the flow at the last chamber, the water wont be same as the amount of BB will not be equally distributed due to the uneven waste/water passing through each sump?
In manufacturing term, the work process isnt efficient as there is a total 6 chambers,Effectiveness with long bigger sumps or multiple smaller sumps to 1 large sump?sea aquarium near me repeating in process 2 and 3。
By making it a 5 way process, the remaining 4 and 5 chambers act as a counter check/QC。
Making the final output safe。
Nonetheless, if you are using 2 60L/hr pump or total of 10 chambers, the outcome will be different。
However, I might be wrong since this is not a work process。
>1 sump at 60l/hr vs 2 sump at a combined 60l/hr。。。 no difference assuming everything else is constant (media type, total volume and contact time etc)
1 sump at 60l/hr vs 2 sump at 60l/hr each total 120l/hr。。 yes there will be a diff because u increase turn over rate。
but in that above scenario u can simply add another pump/powerhead in your single sump to increase flow/turn over rate。 still no benefit of seperate sumps。
most ppl who request overkill sumps either are simply too kiasu (most of the time once the tank is matured u can throw away more than half that media n still have ideal readings。。 assuming your tank isnt overcrowded), or they stock their tank so densely they have no choice since theres not way a normal sump can support their bioload。
>Add- on (wanted to edit but took too long lol)
personally im using a normal sized sump, small in fact, but added an additional inlet (2nd pipe to sump)/outlet (2nd pump to return water) so my turnover rate is doubled。 apart from sump size / chambers another often overlooked issue is how the media is placed and how water flows through。。。。 ive seen many ppl just fill their sump with media and water, ignoring how high /submerged each compartment is。。 to the extent the water flows OVER each compartment instead of through the compartment, happily bypassing the media。。 rendering 80% of their media useless。
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