#algae

Any Idea what this is? How do I treat it? And what do I do so it won't come back? And , of course, what did I do in their first place to get it? Non CO2 tank. Using Flourish fertilizer tabs. Also using Flourish liquid, about every 5 days. Also using Flourish Potassium and Flourish Iron. Roughly...

well, it isn't running rampant - but there is a alot and I have tried everything (it feels like). I have a 55 gallon tank. I have both black and green algae (see pics). I run FluvalSmart Aquasky 1200 mm lights. Please see settings in photo as well. I fertilize with Thrive low tech (recently...

A while back I saw a table somewhere, which listed algae according to a specific nutrient deficiency. Sadly, I had not saved it. Two things about it: 1. Does anyone know, where I can find it? 2. Is that something that had been tested empirically and proven to be legit?