powers2001
started reefing 1999
If you could post links please.
Looking for articles about using Lanthanum Chloride to rid phosphates.
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Randy Holmes-Farley
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I have a blurb about it in my article on phosphate:
Phosphate In The Reef Aquarium
https://www.reef2reef.com/blog/?p=3184
Soluble Metals to Bind Phosphate
There are several approaches that add soluble metals to bind and precipitate phosphate. The most popular involves adding lanthanum, which precipitates as lanthanum phosphate and/or lanthanum carbonate (which itself may contain some lanthanum phosphate). The lanthanum approach is widely used in the pool industry to reduce phosphate, and seems to often work well in aquaria. It is also very inexpensive, using products such as Seaklear (make sure it is a pure lanthanum version as mixtures with other metals also exist). Note that this method reduces alkalinity, as removing carbonate and phosphate as a lanthanum precipitate will reduce alkalinity.
One way to use it is to drip is slowly just upstream of a particulate filter to catch and remove a substantial amount of the precipitate that is formed. One drawback to the lanthanum approach is that much of the precipitated material may escape capture and simply settle out in the system somewhere. That may not be an issue, but many aquarists do not prefer to accumulate such material. A second concern is that some people have observed problematic reactions from aquarium inhabitants. While there are not a lot of such stories, it is enough for many aquarists to look for other options.
However, due to its low cost, this approach is especially well suited to outside of the tank operations, such as the removal of excess phosphate from phosphate-contaminated calcium carbonate rock that is later to be added to a reef aquarium.
Soluble iron has also been used in this way, but not nearly so often as lanthanum.
Phosphate In The Reef Aquarium
https://www.reef2reef.com/blog/?p=3184
Soluble Metals to Bind Phosphate
There are several approaches that add soluble metals to bind and precipitate phosphate. The most popular involves adding lanthanum, which precipitates as lanthanum phosphate and/or lanthanum carbonate (which itself may contain some lanthanum phosphate). The lanthanum approach is widely used in the pool industry to reduce phosphate, and seems to often work well in aquaria. It is also very inexpensive, using products such as Seaklear (make sure it is a pure lanthanum version as mixtures with other metals also exist). Note that this method reduces alkalinity, as removing carbonate and phosphate as a lanthanum precipitate will reduce alkalinity.
One way to use it is to drip is slowly just upstream of a particulate filter to catch and remove a substantial amount of the precipitate that is formed. One drawback to the lanthanum approach is that much of the precipitated material may escape capture and simply settle out in the system somewhere. That may not be an issue, but many aquarists do not prefer to accumulate such material. A second concern is that some people have observed problematic reactions from aquarium inhabitants. While there are not a lot of such stories, it is enough for many aquarists to look for other options.
However, due to its low cost, this approach is especially well suited to outside of the tank operations, such as the removal of excess phosphate from phosphate-contaminated calcium carbonate rock that is later to be added to a reef aquarium.
Soluble iron has also been used in this way, but not nearly so often as lanthanum.
OP
OP
powers2001
started reefing 1999
How about Ultralife Liquid Phosphate Remover. Is that Lanthanum Chloride?
Randy Holmes-Farley
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I had assumed it was, but their MSDS says it is a mixture of organic compounds (which is not a description of lanthanum chloride). Perhaps they don't know what that means. lol
http://www.ultralife.com/wp-content/uploads/2014/06/msds-LPR.doc
"
Section 2 Ingredient Information
Non-Hazardous mixture of organic ingredients
(Biodegradable)"
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