Plantbrain, or anyone else that can help, I posted a thread before the upgrade that I was in the planning stage for a 75 gallon planted tank. You posted a lengthy response with advice for a CO2 setup the day before the upgrade. Could you reply again with your recommendations? Know that I am a novice for CO2 setup. So, please explain all the components (regulator, bubble counter, needle valve, tank, reactor) and whether to buy them separate, together, and from where. Also, some advice on how to start a planted tank (which plants first, add more plants gradually just like stocking fish, etc.) and fertilizers (which ones, frequency, etc.) is welcome. Here's some (hypothetical) parameters: - 75 Gallon - 4x55w CF from AH Supply - Fluval 404 or Eheim 2026 (not sure yet - is this sufficient or do I need to add a HOB as well?) - flourite with possibly some sand for looks (what about a layer of peat first? I have read both ways) - pH of 7.6 Lots of questions, I know, but all advice is welcome. Thanks!