Using Sponge Filter to Cycle New Tank - The Planted Tank Forum
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post #1 of 9 (permalink) Old 01-03-2017, 11:43 AM Thread Starter
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Using Sponge Filter to Cycle New Tank

I currently have a 3 gallon that I am transferring to a 7.5 gallon with two ADF's and two ghost shrimp. I have a sponge filter that I have never cleaned (for good reason) in the 3 gallon that I am going to transfer over to the 7.5 gallon. Its been in there for about a month. Do you think that it has enough beneficial bacteria to start the cycling process in my 7.5? If not I was looking into bacterial supplements to purchase. Also if you do suggest a bacterial supplement, any ideas on what worked for you/others? Thanks!

Last edited by FrieGuy; 01-03-2017 at 11:44 AM. Reason: Additional Information.
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post #2 of 9 (permalink) Old 01-03-2017, 12:17 PM
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I think you have the right idea.
I have done likewise more than a few times.
It will definitely introduce bacteria needed for nitrification in the new tank just don't get crazy adding more fishes for a few week's.
Would also use conditioner such as PRIME and feed sparingly for a week or two.
live plant's would also be a benefit.
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post #3 of 9 (permalink) Old 01-03-2017, 12:35 PM
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Quote:
Originally Posted by roadmaster View Post
I think you have the right idea.
I have done likewise more than a few times.
It will definitely introduce bacteria needed for nitrification in the new tank just don't get crazy adding more fishes for a few week's.
Would also use conditioner such as PRIME and feed sparingly for a week or two.
live plant's would also be a benefit.
Just wanted to stress roadmaster's point. make sure you treat the water in the new tank before adding the filter. Chlorine and chloramine will kill good bacteria, if you don't have a water treatment such as prime I would say put the old tank water in the new tank then top up before adding filter but really prime is by far the best option.

Dan
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post #4 of 9 (permalink) Old 01-03-2017, 12:57 PM Thread Starter
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Quote:
Originally Posted by roadmaster View Post
I think you have the right idea.
I have done likewise more than a few times.
It will definitely introduce bacteria needed for nitrification in the new tank just don't get crazy adding more fishes for a few week's.
Would also use conditioner such as PRIME and feed sparingly for a week or two.
live plant's would also be a benefit.
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Originally Posted by Dman911 View Post
Just wanted to stress roadmaster's point. make sure you treat the water in the new tank before adding the filter. Chlorine and chloramine will kill good bacteria, if you don't have a water treatment such as prime I would say put the old tank water in the new tank then top up before adding filter but really prime is by far the best option.

Dan

I have Prime that I am going to use and was going to introduce at least one new fish this weekend. So process should be: add Prime let sit for a day or so, add filter, then add new fish?
I currently left a couple bloodworms that I normally feed my ADFs and Shrimp to decay in the new tank to see if the ammonia will at least pilfer the water ever so slightly.
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post #5 of 9 (permalink) Old 01-03-2017, 01:07 PM
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The bacteria colony will only ever be large enough to support the tank's current stock.
So if you take the sponge filter from a tank holding only a few fishes or shrimp's,then you cannot safely add a bunch of fishes/shrimps that far outnumber those that were in donor tank from which you borrowed the filter material.
All you are really doing is transferring some bacteria which saves you from waiting week's to establish it otherwise.
The bacteria are fairly quick at multiplying which is a good thing, but is waiting game for it to initially establish without the use of borrowed media from already established or cycled tank as some like to say.
I do not much care for the term "Cycled" for it implies that at some point the process is done when in my view ,,it simply means the tank is maturing or matured.
The bacterial colony grows and or decreases as is needed for the amount of organic matter present.
Add a few more fish (within reason),feed a bit more food as a result,and more bacteria develop for increased organic matter food's,poop,decaying plant matter, etc.
Remove some fishes,and bacterial colony will adjust to only what is needed.
With lot's of plant's which readily take up ammonia,nitrates, + borrowed filter media from already established tank,one can more easily add a few small fish at a time with a week to ten day's between more addition's.
The tank in question 7.5 gal will likely be closer to five gallons with substrate and hardscape so would not plan on adding much in the way of fishes.
Would be interesting shrimp tank.
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post #6 of 9 (permalink) Old 01-03-2017, 01:58 PM Thread Starter
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Think adding my ADFs and some TSS in the new tank and keeping the shrimp in the other tank would help me enhance the bacteria in the new 7.5 gallon?
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post #7 of 9 (permalink) Old 01-03-2017, 03:34 PM
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TSS ? Tetra safe start?
The two African dwarf frog's could be moved to the new tank same day as you place the sponge in the tank from donor tank.Prolly shrimp too.
Just perform 25 % water change every couple day's with the PRIME is test kit read's anything but zero.
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post #8 of 9 (permalink) Old 01-03-2017, 04:12 PM Thread Starter
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TSS ? Tetra safe start?
The two African dwarf frog's could be moved to the new tank same day as you place the sponge in the tank from donor tank.Prolly shrimp too.
Just perform 25 % water change every couple day's with the PRIME is test kit read's anything but zero.

I am going with Stability upon further research. However, I did mean Tetra Safe Start. Will do
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post #9 of 9 (permalink) Old 01-04-2017, 05:02 AM
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I am going with Stability upon further research. However, I did mean Tetra Safe Start. Will do
Meant to say if test kit reads anything but zero for ammonia,perform water change.
With the seeded sponge filter,larger volume of water,relatively small bioload ,maybe some floating plant's as well,you could /should have nothing to worry bout. But if I only had one test in my test kit,,I would want the ammonia test to be it.
Water changes should be easy for the smaller tanks mentioned if ever in doubt.
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