Tropical Fish Keeping - Aquarium fish care and resources

Tropical Fish Keeping - Aquarium fish care and resources (
-   Beginner Freshwater Aquarium (
-   -   Cycle experiment (

jaysee 07-16-2013 10:40 PM

Cycle experiment
Now that the 125 is full of water, I'm going to hook up the filters. They have been full of seeded media and water since I sold the 75 about 4 months ago. Soooooo, the big question..... is the bacteria still alive. I've left filters off but full of water for nearly 2 months before and still had the cycle. We will see..... ammonia dosing to commence tomorrow.

Tracy Bird 07-16-2013 11:22 PM

I'm interested in the outcome of this experiment....

Maybe you could add a poll before you post results, it'd be interesting to see what posters think.

I'd say the bacteria is no longer alive.

NewFishFiend 07-16-2013 11:38 PM

With no source of ammonia for the past 4 months for food, my guess would be that the bacteria is not alive anymore. We shall see :)

Austin 07-16-2013 11:40 PM

Please let us know what happens!! My filters have been sitting in my old fish tank (with rotting plant matter a bit), and not running, so I'm in a similar boat!! :)

jaysee 07-16-2013 11:46 PM

Ask and you shall receive - a poll!

There's plenty of decomposing matter in the filter, so I wouldn't exactly say that there is no source of ammonia. 4 months is a pretty long time though.

Austin 07-17-2013 12:33 AM

I voted other. My gut is that some will have survived, but not all, and that it will cycle much quicker than it normally takes.

Austin 07-17-2013 02:05 AM

Being in the same position as you, I just tested my water. I have one platy now I get 4 days ago. I have I think 0 ammonia (hard for me to tell for the test. I couldn't find my card. But color was the same as clean water), 0 nitrites, and 12.5 nitrate. :D so I think you may have similar results :D

JDM 07-17-2013 10:37 AM


The cycle in the filter will be fine. It takes a long time for decomposing matter to completely decompose to the point of not creating ammonia. Even without the ammonia, the nitrifying organisms go dormant rather than just dying off. How effective the filter only organisms will be seeing as the tank and contents are fresh depends completely on how much of the total ammonia load it was handling previously and how much of a load the decomposing matter in the filter is producing now and how much of a load will be expected with the new tank.

I'd be curious to test the filter water before hooking the filters up to see what the levels are.


jaysee 07-17-2013 11:35 AM

I only hooked up one of the 3 filters that have been sitting. I'll test the water in a filter tonight.

jaysee 07-17-2013 07:07 PM

Tested ammonia in one of the filters - from the very top of the filter. Ammonia is sky high - perhaps 4 ppm. I'd like to test the water at the bottom of the filter....

I dosed the 125 with about 2.5 ppm ammonia. We shall see what tomorrow brings.

All times are GMT -5. The time now is 03:50 PM.

Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
User Alert System provided by Advanced User Tagging (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.

For the best viewing experience please update your browser to Google Chrome