Description
This article is from the Beginning
Fishkeeping FAQ, by Thomas Narten with numerous contributions
by others.
37 Nutrients and Trace Elements
In addition to GH, KH, pH and salinity, there are a few other
substances you may want to know about. Most tap water contains an
assortment of nutrients and trace elements in very low concentrations.
The presence (or absence) of trace elements can be important in some
situations, specifically:
* nitrates, which are discussed in great length in this FAQ in
conjunction with the NITROGEN CYCLE;
* phosphates, the second most prominent nutrient. Phosphates have
been linked to algae growth. If you have persistent algae
problems, high phosphates may be a contributing factor. In a plant
tank, ideal phosphate levels are .2 mg/L or lower. To control
algae, frequent partial water changes are often recommended to
reduce nutrient levels. If your tap water contains excess
phosphate, water changes may be aggravating the situation. Your
local water company can tell you what the exact phosphate levels
are.
* iron, manganese and other trace elements. Plants need iron in
trace quantities to grow. Tap water in many areas contains no iron
at all. Consult the PLANT FAQ for more details.
Continue to:
Share and Enjoy
Bookmark this story so others can enjoy it:
Tags
aquaria, fish, acquarium, tank, fishkeeping
