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You're welcome.
Happy Reefing.
Happy Reefing.
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Mr Randy holmes you have mentioned for dosing iron, ferous gloconate is a good thing, but i didnt found that .
The drag stores have ferrous sulphate.
Is it the same thing that i dose it to my tank?
I have been running Zeovit in one of my SPS systems and so far with good results. My alkalinity is usually lower than the recommended amount in your text (great text BTW). I try to keep it between (6.5 - 7 dKH) but have had it around 6.45 without any major problems (with that said I want to be clear that there is very little variation and it reached that value coming from 6.7 throughout several weeks). I dose 2 part and the way I respond to lower (or higher) than desired concentrations is increasing (or decreasing) my dosing in 10%. Every time I increase the dosing I notice a very gradual increase of approximately 0.05 / week for a couple of weeks and then it starts to decrease again. Do you guys think there is a stimulatory response leading to more use of carbonate after slow incremental concentration increases or it is just the growth speed of my stony corals?
Phosphate at 0.01 ppm or less and nitrate at 0.1 ppm or less could be considered ULNS, IMO.
However, I'm not sure where burnt tip issue really become significant, since almost no one can accurately measure below these levels.
So @ phosphate @ .03 and nitrate @ 5ppm I could raise my alkanity from 8.12 to 8.5 over the course of a wk or so and be safe? Just having trouble finding the cutoff point on Alk b/w ULNS & a system w/ measured Nitrate/Phosphate like I have...
Randy, I just want to start out by saying I have never been a reader, because most literature is a hard read for me, if it's science based. I find you an easy and very enjoyable read, please don't stop writing. Thanks
@Randy Holmes-Farley is it possible for Ca to hardly depletes in a 2 YO reef tank housing hammers, torch, acans, goniopora, colony of zoas, snails and fishes?
I do weekly WC with normal red sea salt and last Ca dose was on 23 January 2016.
All 3 elements were tested using Salifert with expiry of 2018 and longer.
I can see coralline algae here and there.
Yes, when calcium and alkalinity demand is low, calcium may be replenished by so salt mixes that start with elevated calcium.
Alk can also be slowly depleted for other reasons (using a sulfur denitrator, accumulation of nitrate, etc.), but calcium generally is not.
Are you finding you need to supplement alkalinity?
Yes, water changes often supply adequate calcium and not alkalinity, for the reason I mentioned. Your demand for alkalinity is very low. Much less than 1 dKH per week, if I am reading that correctly. You'd expect calcium to drop by less than 6 ppm in that same time frame, which you would not be able to detect with a test kit.
Thanks Randy. 17 years into this hobby and you continue to educate me. Great work!