Hi all! Last year I moved from a house in the country to an apartment in the city, unfortunately my 4x2x2 Tropical tank could not come and I had been fish-less for a few months. The urge to get back into it was too much a couple weeks ago and I decided to setup a small Fluval Evo and try my hand at Saltwater! The tank has been running for about 3 weeks, I started it using Saltwater from the LFS, 6kg of Live Rock and Red Sea Live Reef Sand. I've made the following changes to the tank: Added a Fluval CP1 Powerhead (285 gph) Added a Aqua One 55 watt heater Replaced stock pump with an Eheim Compact 1000 Removed stock media (~3 days ago) and replaced it with a DIY Media Rack (made of Egg Crate) in the first compartment containing: Filter floss at the top Continuum Aquatics Basis Power Cleanse in the middle Continuum Aquatics Power Cleanse Catalytic Carbon in the bottom I have a small problem with keeping the temperature down, I live in a rather hot house. However without the lid on the tanks temperature is perfect, this is fine because I intend to replace the hood/light with an AI Prime HD in the next month. Overall things have gone quite well, I had Diatoms take off, but that appears to have significantly reduced in the last few days. Water tests have all gone well except for the test I did last night there appears to be a small increase in Ammonia. Questions: I have no idea if the 2 Continuum Aquatics products are any good, I was going to get Seachem Purigen and Seachem Matrix but the LFS did not have it and recommended these instead. Thoughts? I believe the Ammonia increase is likely due to me replacing the filter media? I've probably thrown it into a mini-cycle and I am assuming the new media has not had a chance to grow beneficial bacteria to break down the Ammonia yet?