Hi Chipie !
Welcome to the forum
Let me see if I can help with Cycling, and assume you read the sticky posted.
Cycling the tank is actually the creation of a Bio-Filter
Unlike outdoor nature an aquarium is a closed system. It pollutes itself very quickly, the water becomes toxic to fish, and the whole thing collapses if we do not pay attention to some basics.
Cycling the tank is the way to manage organic waste that would otherwise pollute the tank and kill the inhabitants.
Cycling the tank is establishing two different colonies of bacteria which actually consume organic waste.
The product you bought "cycle" is not well respected in the experienced fish keeping community. It is reported that it does not even contain the correct nitrifying bacteria.
The bacteria you need exist in nature, are present in your environment, all you need is to give them a place to grow and food to eat.
It All Starts With Ammonia
Fish excrete ammonia (urea) as part of their waste disposal mechanics.
Ammonia is toxic to fish. Ammonia present in the water column will feed the first bacteria colony that we need. These ammonia eating bacteria will grow colonies everywhere in your tank and eat the ammonia.
A few drops of ammonia purchased at the pharmacy will do the same thing. There is really no need to put a fish through the ordeal. Just add enough ammonia to get a reading.
From there it works like this... The ammonia eating bacteria will excrete waste that waste is NITRITES. NITRITES are even more toxic to fish than ammonia. The second bacteria colony we want eats NITRITES and excretes
NITRATES. NITRATES are only toxic to fish at very elevated levels over long term exposure.
That was a very simplified version of what goes on, but non the less it does go on and it is important to let it happen. It can take up to 4 weeks to establish the necessary colonies.
Trying not to be Vague here. I understand that the sticky does not walk you through the actual steps.
1. Add ammonia to the tank and test for a reading (.5 )
2. Wait a few days
3. Wait a few days
4. Test to see if you have a nitrIte reading and test for ammonia
Test = No Ammonia, Some Nitrite -> add a few drops of ammonia
Test = Ammonia, No Nitrite -> Wait a few days
5. In two to three weeks you will see a big spike in Nitrites then all of a sudden it will go to "0" and you will see a spike in Nitrates.
6. When the Ammonia Reading is 0 and the Nitrite reading is 0 and the Nitrate
reading is 5 - 10 the tank is cycled, the bacteria are doing their job, and now the tank is ready for a few fish.
Hope this helps,
Regards,
Jay