- Joined
- Jan 5, 2019
- Messages
- 1,572
- Reaction score
- 902
How concerned should I be with cobalt in my mixed reef and Macroalgae refugium?
Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
Yeah if triton didn’t call it dangerous I would just let it ride. Maybe they are right and I should change some water and stop using ChaetoGro?surprised to see 2 ppb Co described as "dangerous". Quick googling shows a tenth or a few tenths ppb to be values found in seawater. So yeah it's 10x higher than "natural" but I know nothing of levels of detrimental effects of Co.
RedSea blue bucket salt. RODI water 0 TDS. I have been changing 20% a week for the last two months and haven’t over dosed ChaetoGro, just what they recommend.I would like to see verification that they have gear that can detect 2 ppb of cobalt with that precision in the place.
More than likely the cobalt is coming from your salt mix.
This 100% accounts for your higher than recommended values of Co and Fe.Maybe they are right and I should change some water and stop using ChaetoGro?
I think the Si was from sponge excel a long time ago fighting sand Dino.This 100% accounts for your higher than recommended values of Co and Fe.
(But not Si)
@Dan_P might be interested in what Triton detects in the chaetogrow ingredients.
Will active carbon or poly filter remove cobalt?When I had my water tested by Triton, this was my cobalt comment:
"Cobalt (Co). Cobalt is present in natural seawater at roughly 0.006 µg/L. The Triton LOD = 0.4 µg/L), so having none detected may be fine. We cannot really tell much, unless there is a substantial excess."
FWIW, I do not know what level cobalt becomes an issue, and any answer is speculation since you do not know the chemical form of the cobalt that was detected at 2 ug/L.
Will active carbon or poly filter remove cobalt?
Ah B12 just made me think about the Seachem “Reef Plus” that I’m also using. Sure enough it has cobalt listed ingredient. So I’ll cut back on the vitamins and ChaetoGro. Would you still recommend water changes to try to lower it or let it be?Some chemical forms, yes, and some likely not.
Cobalt is part of vitamin B12 and a lot of other organics. That will have very different chemical and biological properties than, say, free Co++.
Ah B12 just made me think about the Seachem “Reef Plus” that I’m also using. Sure enough it has cobalt listed ingredient. So I’ll cut back on the vitamins and ChaetoGro. Would you still recommend water changes to try to lower it or let it be?
This 100% accounts for your higher than recommended values of Co and Fe.
(But not Si)
@Dan_P might be interested in what Triton detects in the chaetogrow ingredients.