Hello there, sorry to hear that you are stuck in a fish-in cycle situation.
You are not alone, many people do the same thing you do, but you are fortunate that you have found us.
This is what happens in our filters:
There are usually 3 steps in our filters.
The first step is mechanical filtration, which filters out particles in the water.
The second step in our filters is chemical filtration, this is where you will find Activated Carbon and what not.
The third and MOST IMPORTANT part of your filter is called biological filtration. This is where you colonize beneficial bacteria to process ammonia, which is produced by your fish.
Here is what biological filtration does, step-by-step:
When Ammonia is produced by our fish, autotrophic bacteria begin to grow in our filters to process this Ammonia. Ammonia is the food source for these autotrophic bacteria.
When Ammonia is processed by these beneficial bacteria, the Ammonia turns into NitrIte.
Now, once NitrIte starts to become present in our tanks, another type of autotrophic bacteria starts to grow in our filters to process NitrIte.
When NitrIte is processed by these other types of bacteria, it turns into NitrAte.
Now, there is not type of bacteria that can process NitrAte, and the only way to get NitrAte out of the water is by doing water changes.
Now you have a basic understanding as to what types of bacteria in our filters process Ammonia and NitrIte.
Now I am going to tell you what to do:
Obviously it takes time for these beneficial bacteria to grow in our filters, we are talking 4-6 weeks for enough of them to grow to process all of the Ammonia and Nitrite.
Ammonia is toxic to fish if it is over
.25 ppm. If fish are exposed to a higher level of ammonia over .25 ppm, it will give them permanent gill damage.
Also, NitrIte is toxic to fish if it is over
.25 ppm. If fish are exposed to a higher level of NitrIte over .25 ppm, it will give them permanent nerve damage.
NitrAte starts to get harmful to fish if it is 50+ ppm.
Your role in a fish-in cycle:
After you buy a good LIQUID test kit, I would suggest the API Freshwater Master Test Kit, will you be able to test for
Ammonia, NitrIte, NitrAte and pH.
You have to test a couple times every day for ammonia and nitrIte.
If Ammonia and/or NitrIte is over
.25 ppm, you must do a water change to bring the Ammonia and/or NitrIte down around .25 or 0 ppm.
Over time, you will see that tour ammonia and/or nitrite is not rising up that fast, and you are doing less water changes to bring them down. This is from the beneficial bacteria that are starting to colonize in your filter to process ammonia and nitrite.
After about 6 weeks, you will see that your Ammonia and Nitrite are always at 0 ppm, and you NitrAte is slowly rising. At this point your are considered Cycled!
Things to remember:
Ammonia is toxic to fish if it is over
.25 ppm. If fish are exposed to a higher level of ammonia over .25 ppm, it will give them permanent gill damage.
Also, NitrIte is toxic to fish if it is over
.25 ppm. If fish are exposed to a higher level of NitrIte over .25 ppm, it will give them permanent nerve damage.
NitrAte starts to get harmful to fish if it is 50+ ppm.
The only way to get Ammonia and NitrIte during the cycle is by water changes.
After you have enough beneficial bacteria in your filter, they will process Ammonia and NitrIte for you, and Ammonia and NitrIte will read 0 ppm on your test kit!
Things to buy:
API Freshwater Master Test Kit.
DO NOT buy any strip test kits, as these are not good and VERY inaccurate.
You also need a good water conditioner. I would suggest the API Stress Coat.
A water conditioner takes out chlorine and other heavy metals out of your tap water, which makes the water safe for your fish, and beneficial bacteria in your filter.
You must add water conditioner to your tap water every time you do a water change.
I hope this helps you out a little, and I hope I made it more clear to you what you need to do!?
Regards
-FHM