EricTheRed: You're totally right about my goals with each product. I do plan on getting both the light and the power heads, just wondering in which order would be best.
With the tank I have right now there's a three-shelf system that I only have a carbon filter on right now. There's a place that I can grow macro algae, but I haven't done so yet. I've got to assume it's not expensive, where should I pick it up? I was thinking about making my rear filter look like this.
Thoughts all?
Ah I see. So all this is is the DI portion. This will cost you more money in the long run as you'll go through your DI resin quickly. To put it in perspective my tap TDS is 140. The RO strips it down to 1, then the DI strips that little amount of TDS out. A full RO/DI is not expensive - only $159 at BRS and can hook up right to your sink.
Excellent advice about the ro/di. The $110 bucks you save will be lost very quickly as you regularly have to replace resin cartridges.
. Most tanks run +/- 3.0 swing in pH daily and it has no ill effects on the tank. (Mine tends to fluctuate by +/- 3-4 everyday.) I even read that most tanks swing +/- 5.0 daily and have perfectly healthy tanks.
I think you mean 0.3 - 0.5 swing. a 3.0 - 5.0 swing would be disastrous for your tank.