So many questions lately! Okay, so I got a new betta in a 5 gallon Eclipse hex tank. I set it all up last night. The hex comes with it's own filter. In my cycled 16 I have an aquaclear 30 with those little cylinder things in a bag. I took one of the cylinders and kept it in water while I was setting up and then put it right in the hex filter, under the water flow. I also put some of Tango's gravel in the tank and three plants that came from the 16 tank went in too. Just now I did an API test and I got .25 ammonia, 0 nitrites and 10 nitrates. I just did a 10% change to the water. I'm assuming I 'seeded' properly since I'm having nitrates on the second day of the tank. Am I correct? I'm kinda new to cycling.