Hey guys quick question. I set up a 20 Gallon Tank with a sponge filter. No media bare bottom. I added TSS safe start and Dr Tim’s Amonia. Got it to 4ppm after another week I added Dr Tim’s One and Only. It’s going on 2 weeks and still I’m stuck at 4ppm Ammonia 0 Nitrites and Nitrates. Should I just keep waiting? Or should I keep adding TSS or One and Only?