Lanthanum chloride

treated one more time with 10ml diluted in 1 liter of water. Dripped it in at about one drop/second. Phosphate is now 0 (or close to it on my Salifert kit). Kh did drop to about 7.5 so I buffered that up and now I am hoping to see my stonies do better again.

Thank you guys for the awesome information.
 
wakesetter said:
treated one more time with 10ml diluted in 1 liter of water. Dripped it in at about one drop/second. Phosphate is now 0 (or close to it on my Salifert kit). Kh did drop to about 7.5 so I buffered that up and now I am hoping to see my stonies do better again.

Thank you guys for the awesome information.
Click to expand...
:thumbsup::thumbsup:
 
Update - I've dosed LaCl3 a couple more times since writing this and I no longer have a noticeable flatworm population...

I cannot scientifically prove that the Lanthanum killed them out but I would highly recommend this as a treatment before using "flatworm" specific other treatments.

For now I'm very happy to be pest free!! :fish1:


Gary Majchrzak said:
the small common "red toast" planaria retrogramma (sp?) flatworms often proliferate when cyanobacteria is present. They probably feed on red slime. So, at least indirectly, it would make sense that LaCl3 use would help control those flatties via reduction of cyano.
Now, if LaCl3 directly kills those flatties in small doses that are non-lethal to other marine aquarium life... THAT would be an interesting thing. I'm sure that large doses of LaCl3 kill marine life. I've seen it happen again and again. But if those flatties are killed with the small recommended doses it would be interesting.

Bladez- remember to monitor alkalinity when dosing LaCl3!
Click to expand...
 
Hello Gari,
Here in Brazil is not the solution liquedo lanthanum in the state, found the lanthanum chloride BP grade powder, the formula for a diluilo in RODI water for?

Thanks a response
 
I use roughly 5 ml LaCl3 diluted into a litre on my 200.
2.5 ml into a litre for a 90 is a good starting point for you, Napi.
GO SLOW. MONITOR ALKALINITY. MONITOR PO4 WITH A LOW LEVEL TEST KIT.

The amount of treatment anyone's aquarium will need will vary with their PO4 levels.

Once I got PO4 levels down I stopped treatment. I haven't dosed LaCl3 for many months now. That's not say that I'll never dose it again. I think it's a good way to knock down excessively high PO4 levels.
 
Gary Majchrzak said:
I use roughly 5 ml LaCl3 diluted into a litre on my 200.
2.5 ml into a litre for a 90 is a good starting point for you, Napi.
GO SLOW. MONITOR ALKALINITY. MONITOR PO4 WITH A LOW LEVEL TEST KIT.

The amount of treatment anyone's aquarium will need will vary with their PO4 levels.

Once I got PO4 levels down I stopped treatment. I haven't dosed LaCl3 for many months now. That's not say that I'll never dose it again. I think it's a good way to knock down excessively high PO4 levels.
Click to expand...


Thanks Gary!

Do you think it's possible for LaCI3 to strip PO4 from live rock in a running tank?
 
ImageUploadedByTapatalk1338665006.860594.jpg

Ok how long should I leave the filter sock after the dose?

Thanks
 
Another LaCl3 Reactor Rig-up...

Another LaCl3 Reactor Rig-up...

Okay - so it's been a little while since I've gotten back to this thread, but nonetheless, here's a little rig-up I'm just in the process of tuning up...

Lanthanum Chloride Reactor (Full)
LaCl3-Full.jpg


Chamber 3 with Carbon (Precipitate visible)
LaCl3-Precipitate.jpg


Feed from Dosing Pump (into suction side of recirc. pump)
LaCl3-Drip.jpg


So here's a brief summary:
  • Total system volume is approx. 900 gallons (550g DT)
  • Mag3 pump feeds system from sump via 1/4" polyethylene line
  • System water fed in through suction side of eheim 1250 recirc pump attached to first chamber
  • Approximately 0.75% - 1.0% dilution of LaCl3 fed into drip (also Tee'd into suction side of recirc pump). Dosing pump runs for 2 mins every 3 hours
  • Throughput is approximately 4gph
  • Large clear canisters bought from Home Depot; fitted with quick connects
  • Last chamber loaded with system carbon to help settle out (passive mechanical filtration) precipitated PO4 fines
  • After last (carbon filled) chamber system water is fed directly into Calcium Carbonate Reactor (which consists of two 6" dia x 36" high chambers)
  • Effluent from Calcium Carbonate reactor then feeds directly into one of two large beckett driven protein skimmers..

The idea is that 0 phosphate precipitates; and 0 carbon fines should make it back into the system. I've been tuning it for the last few of weeks as I was getting some air infiltration which was stalling the calcium reactor after a few days; however I believe I've tracked this back to not fully resolving the feed into the suction side of the recirc pump... I'll be able to confirm the fixes when I visit this job tomorrow morning.

If I can keep it running without sucking in air (which should be the case now) it looks as though system water is entering in at 0.45ppm PO4 and exiting (prior to skimmer) at 0.03ppm PO4. I should be down to optimal levels within a few weeks.

BTW - this system is very heavily fed with frozen food and coral food rations...


Calcium Reactor
BB-Pics_265.jpg


Protein Skimmers
09-0101-02_076.jpg


What's key about this system is that I only visit it twice per week so everything has to be on auto-pilot. I have two dosing pumps: the first doses vinegar, and maintains NO3 at 0-2ppm; the second doses LaCl3, and is currently bringing the phosphate down toward a target of 0.03 - 0.05ppm. There are no filter socks on this system at all; in fact, the only mechanical filtration is provided by the pair of large protein skimmers... this LaCl3 phosphate removal system relies completely on slow flow; a long route; and strong protein skimming.

Anyway - that's all for now; hope this helps those of you considering a diy LaCl3 reactor.

Regards,

Sheldon
 
Thanks - this is my second constant run diy setup. The first one is posted on page 19 of this thread. It also uses a 1% dilution but constantly drips in at a rate of 1 drop per 45 seconds or so... PO4 has been reduced to 0.08ppm (from 0.75ppm). There's no dosing pump on that setup, and a relatively smaller settling accommodation (just a single 5 gallon pail as shown; and direct feed into a protein skimmer).

So I know it will work, once I take care of the air infiltration issue I mentioned... Can't wait to wake up in 5 hours and put my Milwaukee Phosphate tester to use... :)

Regards,
Sheldon
 
very well done, running through carbon, CR and then skimmers provides much more of a barrier to not allow LC precipitates to escape into the DT

also, it's easy to see the yellow LC precipitates against the contrasting black carbon

do you plan on changing the carbon when you see the LC precipitates building up (prior to clogging) since you are not there daily?
 
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