Can I dose chemiclean after treating with Lanthanum?

Jimmyneptune · Aug 26, 2020

I have been trying to up my water quality and cleaning in my display. some montipora in my display I thought was gone is starting to come back and I am seeing growth in other corals. I have been dosing my tank with lanthanum, PhosBan®-L. The lanthanum dosing has been working well and has been decreasing my phosphate. I've treated several times over the past few days lowering my phosphate from 1.28 to .85 then .58 and an expected value of .25, treated today. My nitrate was also high always hovering around 50-80 PPM for. Nitrate is now .25 PPM. I have done some water changes 30% and a 10%. How long should I wait to dose Chemiclean?

Montiman · Aug 26, 2020

I see no reason why you can't immediately use chemiclean. I have used both lanthanum and chemiclean without issue. I do think it helps to siphon out as much cyano as possible before using chemiclean. I would do a water change and siphon out what you can, then use chemiclean. The water change will also help dilute any remaining lanthanum.

Randy Holmes-Farley · Aug 27, 2020

I agree there is little reason to think that an antibiotic treatment like chemiclean and lanthanum will have any negative interactions.

Jimmyneptune · Aug 27, 2020

I ended up with a po4 at .2 and nitrate at .25 before I dosed the chemiclean last night. I added two airstones, took the cup off my skimmer and I am going to wait 48 hours to do a water change. I will probably do a 25-30% water change.
The cyano I have seems to stick to the rock so I am thinking the chemiclean will remove it or free it up so I can blow or siphon it off.