Coral Reef Research, Inc. (Natureef) Iron Plus

The NatuReef® Iron formulation is not gummed up with a bunch of organic materials. Instead, it allows the Iron to be used in the free form or be naturally bound by the organics in your tank.
No extraneous junk added.

The PLUS means that we included a number of minor growth substances, such as Cobalt and Manganese, along with the Iron. These are the things that can put photosynthesis in high gear. If you want to grow green macro algae or are cultivating phytoplankton, Iron Plus is absolutely the natural thing to use. It is available in both 16 and 32 ounce (473 and 946ml) bottles. Iron Plus may be added manually or with a precision NatuReef® dosing system described under Trace Feeders.Click here for additional information on Iron Plus