Cycling New 33 gal Tank - UPDATED w Pics! So I bought myself an early Christmas present - a 33 gal tank. I am doing a fishless cycle now, I think... I have it 75% full of water so far, with substrate and plants mostly in place. Some of the plants were taken from my already established tank. The gravel was used previously but the tank was drained before I got it (I bought it second hand). Should I also put some of the rocks from the established tank in pantyhose and put in my new tank? (I don't want to mix the rock colours, just introduce some good bacteria). I have set up the filter (Aquaclear that came with it) and have been running it. I soaked the sponge in my already established 10 gal tank before putting it in my my new filter. I have also added fish food to start the nitrogen cycle. I do not have my master test kit yet (hoping to get that Christmas morning). I was thinking of putting the media from my 10 gal tank in the new filter because it should have a healthy colony of bacteria. Do I simply replace the sponge in the 10 gal one when I do this? I do not want to start a mini cycle in the 10 gal tank. There is only a male betta and siamese algae eater in there now. I plan on stocking with a siamese algae eater, a few guppies, a shoal of black neon tetras and maybe others eventually. I also need to buy a heater for my tank (the previous owner kept that - he upgraded to a 50 gal tank). I live in Canada so it is quite cold here, even in the house. So I am thinking I will need at least a 200 watt heater. Though I found a 400 watt heater that costs only $10 more than the 200 watt one. Would it be better to purchase the 400 watt heater even though it is likely more than I need? Would there be any advantage? Thank you in advance. I have already learned so much. I look forward to learning more in your replies!