What Matt just said is, B Ionic equals coral crack....... Very easy to use and great results. Purple up is garbage. It claims to be both calcium and carbonate in one bottle. When you buy B Ionic do yourself a quick favor. Take a bit of both and pour them in a shot glass together. You'll see very quickly why you can't make an "All In One" product. The 2 compounds make aragonite sand as he said, Purple Up is only ground sand.

If you need additional cooling fans and your husband is not available to help, you can just get some $5 clip ons from Wallymart and point them over the water or at the fixture. Then you can get crafty with CPU fans, transformers and photo eyes to make them work with your lighting.

Don't chuck the phos sponge. Trust me I'd like it myself. It is a great product to have around. So simple to use. If your tank is ever becoming grungy you can slip it in an old nylon and drop it into the sump. It will draw excess phosphates (nutrients) from the water. Algae thrives on phosphates.