Does cycling media require water flow?

nossalucard

Candiru
MFK Member
Jan 3, 2015
267
75
46
North Carolina
I feed my media cylcing tank 20-30 drops of janitors ammonia once a day or two personally, with a "quick squirt" of stability or nite out once every couple weeks if I miss feeding ammo for a few days (I've been traveling out of town alot as of late)

I test for ammo once or twice a week to assure still active....

I also keep a heater in the tank jacked up to 80 degrees.
 
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aromao

Feeder Fish
MFK Member
Oct 23, 2016
8
2
3
Singapore
My 3 feet tank is stocked with bala sharks, bichirs and some other fishes that serve as ammonia sources. I also removed the biological filtration from my main filter (which is risky) but should ensure that the bacteria will build up more quickly. A few ammonia tests have shown 0 ammonia since the 24 hours after removing it.

Edit: oh didn't realise that the thread became 2 pages long and someone has already identified my livestock haha.

I feed my media cylcing tank 20-30 drops of janitors ammonia once a day or two personally, with a "quick squirt" of stability or nite out once every couple weeks if I miss feeding ammo for a few days (I've been traveling out of town alot as of late)

I test for ammo once or twice a week to assure still active....

I also keep a heater in the tank jacked up to 80 degrees.
It's difficult to find ammonia solution in my country and I don't think I should add it to an established tank. I will be getting a new tank soon and will be trying the fishless cycle like you've suggested.
 
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skjl47

Goliath Tigerfish
MFK Member
May 16, 2011
4,404
3,795
179
Tennessee
I don't think I can bear to spend money just to speed up the process slightly. The only HOB filter I have now is a tiny 180L/H one that can fit practically 20 ceramic rings so I won't use it. Other than that, I don't have any more spare equipment lying around.
I tried my best to make the air bubbles rise as efficiently as possible.
What do you think of this set-up?
hello; I am from the time when all we had were air operated filters. I started in 1959. The setup pictured will have some beneficial bacteria (bb) colonies growing on the media. The bubbler (air stone) is not going to have the flow of an impeller but will generate flow.

My take is that there are likely trade offs with gentle flow and with high flow and that the end results can be similar. With the gentle flow as pictured the ammonia loaded water will have more time to interact with the bb as it pass by the bb loaded surfaces. In a powered filter the water moves by much faster with less time for interaction but cycles back much sooner. With the same bioload (stocking density) the end result seems likely to be similar numbers of the bb.

The population of bb is constantly adjusting with regard to its food, ammonia. If The ammonia levels go up then the bb population will increase soon. The brief time lag is sometimes call an ammonia spike or mini-cycle I think. The magnitude of the spike should be determined by how big the sudden increase in the amount of ammonia is. Such as adding a big fish or a lot of small fish.

I ran tanks with no filtration at all (walstad method they now tell me) and with only airstones. In both cases there were bb colonies on the surfaces. The issue being that in such tanks it was easy to overstock with fish. Air powered filters and later impeller powered filters allows us to increase the stocking densities in the same size tanks up to a point.

I think your set up is fine for the intended purpose of keeping some bb colonies active.

Good luck
 

aromao

Feeder Fish
MFK Member
Oct 23, 2016
8
2
3
Singapore
hello; I am from the time when all we had were air operated filters. I started in 1959. The setup pictured will have some beneficial bacteria (bb) colonies growing on the media. The bubbler (air stone) is not going to have the flow of an impeller but will generate flow.

My take is that there are likely trade offs with gentle flow and with high flow and that the end results can be similar. With the gentle flow as pictured the ammonia loaded water will have more time to interact with the bb as it pass by the bb loaded surfaces. In a powered filter the water moves by much faster with less time for interaction but cycles back much sooner. With the same bioload (stocking density) the end result seems likely to be similar numbers of the bb.

The population of bb is constantly adjusting with regard to its food, ammonia. If The ammonia levels go up then the bb population will increase soon. The brief time lag is sometimes call an ammonia spike or mini-cycle I think. The magnitude of the spike should be determined by how big the sudden increase in the amount of ammonia is. Such as adding a big fish or a lot of small fish.

I ran tanks with no filtration at all (walstad method they now tell me) and with only airstones. In both cases there were bb colonies on the surfaces. The issue being that in such tanks it was easy to overstock with fish. Air powered filters and later impeller powered filters allows us to increase the stocking densities in the same size tanks up to a point.

I think your set up is fine for the intended purpose of keeping some bb colonies active.

Good luck
Thanks for your insights and for sharing your experiences. I am amazed at how long you've been in the hobby for! I am a relative newbie compared to most people - only started fish-keeping about a year ago.

Since the air pump do provide some sort of flow to the media, I guess this set-up should be sufficient until my pump is fixed, which would take another week from now.
 
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