So I went to petco today to look for some aquarium decorations. Unfortunately they had nothing that looked natural which was what I was looking for. However I asked the aquarium manager some questions about my aquarium and eventually we started talking about cycling. I told him I was going to do fishless cycling with pure ammonia and he strogly suggested against it. He gave me several reasons why I shouldn't cycle the tank with pure ammonia or any other chemicals. His argument was very convincing. In fact he said if I agreed not to use the pa (I'm going to call pure ammonia pa for short lol!) he would pay for the cycling fish with his own money! He's persuaded me against pa and I've decided to do a natural cycle with fish. He said not to use tetras, angelfish, and some others. He recommended I use I forgot I think it was like chichilds, platies, and some other hardy fish. I asked him if albino cories would work he said they're ok but they're kinda touchy (meaning occasionally sensitive) and he reccamend me being a beginner to go by one of his suggestions. I also went to my lfs and they said the same thing. I've been doing research online and hear the same thing. I'm going to use natural cycling method so which fish should I use? My tank 28 gallon glass aquarium with a 150 watt stealth pro heater, coralife LCD digital themometer, 4 bog black stones, a marineland penguin 150 bio wheel with 2 filter cartridge slots, and 17 watt florescent lighting. My stocking plan I 12 albino Cory catfish, 1 female betta, and whatever fish you guys and petco guy says to cycle the tank with. I also plan to use marimo balls and driftwood. Also some natural looking caves and either live or articficial plants because I want live but my substrate isn't deep and my lfs told me sand isn't good for roots. I want a extremely peaceful fish for sure and preferably one that doesn't look like a betta, people have told me betta tend to flare at any fish that looks like their own species. Perhaps something unique like a unusual looking fish(s). Thanks sorry for my extremely long question I'm just concerned and I want my tank to be done right because my parents invested a extreme amount of money into it and have high hopes!