How long does it take a filter to "mature"?

  • We are currently upgrading MFK. thanks! -neo

ecoli73

Feeder Fish
MFK Member
Dec 15, 2010
3,867
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Sunnyvale, CA
Hi,

In preparation for my tank upgrade, I have bought 2 eheim 2028 and have it running on my existing 100 gallon tank(which has another eheim 2028 and 2 emperor 400 running).

The tank is stocked with a dozen 2-3 inch CA/SA cichlids and 6 2-3 inch different plecos. I do 25% water changes twice weekly and I keep the temperature of the tank at 78 degrees.

My plan is to running this setup until I get my 240/300 gallon setup(in a few month) and then transfer these filters on the new tank. I will probably get one more Eheim 2028 filter for the larger one then(I can't add more to the current setup. Eventually as I transfer stock to the bigger tank, I will have four Eheim 2028s running in the larger setup(with more fish stock of course).

Question: How long does it take for these filter to "mature" so with moderate increases in stock, I will not have to go through full cycle(and how can one measure bio capacity of the filter without adding ammonia into the tank?
 
The filters will not mature completely without enough bacteria. I would start to add a little stock to the smaller tank. It doesn't take them long to catch up if you only add one or two fish at a time.
 
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