Originally Posted by ferretmath
- 0.1 (in tank and source water, as well)
Hmmm........is the PO4
level really high?? What else could I do to lower it??
level above .5 ppm
can start causing unwanted algae growth. Reducing feedings and the skimmer will go a long way in reducing it to .5 or less.
levels increase from any decaying matter i.e.
Plant material that dies off,
The breakdown of undigested food in feces,
fish/invert death that decomposes,
Overfeeding and the decay of the food that is not consumed.
also can come from unexpected sources i.e.
Phosphate in the water you are using,
Phosphate present in the salt you use to make up water,
Additives that contain it,
Carbon that leaches phosphate into the water,
Phosphates in buffering compounds,
Adding the liquid of frozen foods after it thaws to the tank.
There are others but these are the most common reasons why po4
water should have a 0 ppm
level of po4
and your filters should be changed out. RO
only water can still have traces of po4
There are also mechanical/chemical ways to reduce po4
and they include:
Poly-Bio-Marine Poly Filter
Phosphate Filter Pads
ROWAphos Phosphate Remover
Ideally you want to maintain your phosphate concentration at 0.5 ppm
or lower if possible to prevent algae growth.