I drew a layout of my room where the tank is, the sun is facing toward my room when it rises and sets on the other side of the house, but I have curtains. Should I get blinds if it is the sun doing it? The curtains still let light through. and I was saving up to get better lighting because I wanted to grow more plants, but I don't want to have a ton of algae. do i have to save up for a co2 system too? and can you point me in the direction of a reasonably priced good one for a 55 gallon tank or tell me what i should look for in a co2 system (like what it's named and what i should/n't be looking for).. thank you
edit: now that I look at it the side that has algae on the glass is the left side wall(that the sun prbably hits when it comes thru the window)... so it is most likely the sun doing it...