I've been dragging my feet on completing a tank project of converting my ten gallon dwarf puffer tank into a planted tank because i can't decide exactly how I want to filter my tank. I really wanted to make a sump because I love the concept of it, but the more I think about it the more I realize it makes no sense for what I need. I've been extremely lazy with my tank, I havn't changed the water in over 3 weeks, but my ammonia, nitrite, and nitrates are all still at zero because of all my plants. I was thinking about removing my hob filter, and adding a powerhead to the tank, and letting the plants filter out the tank. I'm confident the plants will work for chemical filtration, but i'm worried about mechanical. Do you think the absence of a real filter will make a big difference in the tank?