Is it a good idea to aerate the sump

[tco]

Originally Posted by kepala sakit

Sure bo? Put the air strip @ the blind spot, air will lift water upward de wor, latterly will cause a vacuum effect on it way, thus, when bubbling there'll be water movement from bottom up no matter how dense the media. K1 by bubbling is propelling the water movement is 1 typical example wor...

I put the air stone at the gap so yes will help to lift the water upward to other compartment, no issue with this arrangement. I tried with the air stone under the Jap Matt, and caused overflow after some time.

[kepala sakit]

Originally Posted by tco

I put the air stone at the gap so yes will help to lift the water upward to other compartment, no issue with this arrangement. I tried with the air stone under the Jap Matt, and caused overflow after some time.

If u place the air out let juz beneath the media where the water trickle (blind spot) If i'm not wrong it'll help lift the dead water upward, and the rushing water will help flush it.
Imo, over flowing occur when the air is place on the wrong location, incidentally, it'll impede the flow instead.

[WXTan]

just wondering if there is really a need to aerate the sump.

Correct me if i am wrong, but if there is an airstone in the main tank, it is already helping in the exchange of co2 and oxygen by creating more circulation using the bubbles.

The oxygen gain from the aeration will reach the sump as well to provide for the bacteria so i would think there isnt a strong need to aerate the sump. No doubt the addtional aeration will help but the results might be negligible unless oxygen level can be measured before and after.

[tommyn]

Thought there are certain bb that do not like oxygen? I aerate the sump but for 1 portion only, rest are running for k1.

Just wondering how true that certain bb do not like oxygen and whether to add more airstones

[Tay]

The main aim for hving air stone in sump is for bb to wk efficiently. Without O2, bb is as as gd as useless even though u may hv the biggest sump in the world.

[kepala sakit]

Originally Posted by tommyn

Thought there are certain bb that do not like oxygen? I aerate the sump but for 1 portion only, rest are running for k1.

Just wondering how true that certain bb do not like oxygen and whether to add more airstones

It's not about BB's like or doesn't like...It's wat you wanted your sump to be aerobic both or anaerobic capable. Hving a mass media in a sump does not prove any thing unless your're able to utilize the water to flow thru the maximum surface area of the mass in the sump. Otw, to me machiam a saloon car fix with a tractor wheel. Can I fault that it will not move?

[sirwin81]

hmmm. i have qute a good flowrate in my filter. the surface doesnt look stagnant but i m still having problems with mosquito.

Originally Posted by marshy

Whole idea to prevent mosquito breeding is to prevent stagnant water.
If your sump water movement on the surface is not stagnant it should be fine.
Having the aeration helps to prevent stagnant water surface and also provides O2 to the BB during WC. This point is more so for those with huge tanks and take longer time to do huge WC.

[AlvinLeong]

Originally Posted by sirwin81

hmmm. i have qute a good flowrate in my filter. the surface doesnt look stagnant but i m still having problems with mosquito.

Most properly not mosquito but Midge fly. They laid eggs at wet/dry area, the wool, partly submerged media....etc. They will mass produce so once you spotted them, got to apply Vermex ASAP to kill their life cycle.

[john ng]

i was wondering, if even air cannot pass through the jap mat, then wouldnt water find it even more difficult? or if media is packed so tightly together, even air cannot pass through then what chance does water have? i believe KS's point is water helps with the flow of water, either reducing dead spots or improving the flow rate through the media.

[tco]

Very simple to test, place a Jap Matt under a air stone. Air will form a layer under the Jap matt.