Reef Central Online Community
Blue Zoo Aquatics

Home Forum Here you can view your subscribed threads, work with private messages and edit your profile and preferences View New Posts View Today's Posts

Find other members Frequently Asked Questions Search Reefkeeping ...an online magazine for marine aquarists Support our sponsors and mention Reef Central

Go Back   Reef Central Online Community > General Interest Forums > Reef Discussion
Register Blogs FAQ Calendar Mark Forums Read

Notices

User Tag List

Reply
Thread Tools
Old 06/21/2021, 09:01 PM   #1
Gilby180
Registered Member
 
Join Date: Sep 2009
Location: Minnesota
Posts: 14
Lanthanum chloride help needed weird things...

Hey I am having some weird issues regarding lanthanum chloride.

I've been using lanthanum chloride for 2 weeks. Tropic Marin https://www.tropic-marin.com/control...rapid/?lang=en

I'm trying to get my phosphates down to .1 ppm they are at .4 or .5 ppm regularly

I am dripping with an IV bag 1200ml of rodi water and 15ml of lanthanum chloride. At the rate of 1 drop per second. Slowly to the aquarium into a 5 micron sock.

This is the weird part. I am using the hanna checker ulm phosphate ppm checker. Before 15ml of lanthanum phosphates at .18 16 hours later my test says .50 Why would my phosphates go up after dosing the lanthanum??? This has been tested several times with the same result the p04 goes up..

Idk why my phosphates won't go down to .1 I have been dosing lanthanum for 2 weeks now.

I have a 6 stage ro/di filter
I have a 120g with 40g sump
N03 is at 20ppm
P04 ~.4
Silicates 20ppm ( to out compete dinos with diatoms)
I run carbon through gfo reactor
I have a 25w uv sterilizer
I run tunze 9415 skimmer
4 t5s and 2 kessil 360
2 mp40s
I feed daily 2 cubes of mysis and 1 sheet of nori to about 10 fish I have and some of the fish are bigger, I rinse food in tap water in a net then feed.

Is the absorbed lanthanum with the phosphate in the sock leeching back into my water somehow? Idk I'm very confused .


__________________
" Do it nice or Do it Twice"

Current Tank Info: 40g Breeder LPS, Softies
Gilby180 is offline   Reply With Quote
Old 06/22/2021, 09:41 AM   #2
Vinny Kreyling
Registered Member
 
Vinny Kreyling's Avatar
 
Join Date: Nov 2002
Location: Miller Place, NY
Posts: 7,024
My GUESS is you need a finer sock. 5 Microns is not fine enough.
10 Microns is what is recommended, but lower would also work though it might clog sooner.


__________________
250 gallon mixed reef, 2 Reefbreeder's Photon V 2, Deepwater BLDC 12, DAS EX-3 Skimmer, MTC mini cal, 2-3/4" Sea Swirls, Aquacontroller & 6 Tunze pumps.
Vinny Kreyling is online now   Reply With Quote
Old 06/23/2021, 09:26 AM   #3
Lou Ekus
Registered Member
 
Join Date: Nov 2003
Location: Ma, USA
Posts: 37
Lanthanum chloride and PO4 reading

@Gilby180 .....my guess is that the crystals formed by the reaction of the PO4 and the lanthanum chloride have some effect on the optics of the Hanna checker. I seriously doubt that the actual PO4 concentration has gone up by that much. Once the PO4 is bound to the lanthanum chloride, it will not go back into solution. If it were me, I would try a PO4 reading with a standard reagent test kit and see what you get.


Lou Ekus is offline   Reply With Quote
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump


All times are GMT -6. The time now is 10:27 AM.


TapaTalk Enabled

Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2021 Axivo Inc.
Use of this web site is subject to the terms and conditions described in the user agreement.
Reef CentralTM Reef Central, LLC. Copyright 1999-2014
User Alert System provided by Advanced User Tagging v3.3.0 (Pro) - vBulletin Mods & Addons Copyright © 2021 DragonByte Technologies Ltd.