Calcium Carbonate
- Thread starter dannyfish
- Start date
After rethinking, CaCO3 raises KH and GH.
High KH have been said to cloud water when adding iron fert or when using ADA Aqua Soil
(but it seems Tom don't believe the latter). But I've never had high KH, that may explain why
I've never had the issue. So I'm afraid I don't have a suggestion.
These links may be useful.
http://www.aquajournal.net/na/notes/001/index.html
http://www.barrreport.com/showthrea...s-between-ADA-soils-(Africana-Malaya-Amazonia)
http://www.barrreport.com/showthread.php/6455-Iron-clouding-the-water?p=44378
High KH have been said to cloud water when adding iron fert or when using ADA Aqua Soil
(but it seems Tom don't believe the latter). But I've never had high KH, that may explain why
I've never had the issue. So I'm afraid I don't have a suggestion.
These links may be useful.
http://www.aquajournal.net/na/notes/001/index.html
http://www.barrreport.com/showthrea...s-between-ADA-soils-(Africana-Malaya-Amazonia)
http://www.barrreport.com/showthread.php/6455-Iron-clouding-the-water?p=44378
It Don't Wanna Dissolve
Hi,
Calcium carbonate, CaCO3, simply is not very soluble in water. It is why most folks prefer, gypsum, Calcium sulphate CaSO4 or plaster of Paris, 2CaSO4.H2O that even though slow dissolving it is many times quicker than Calcium carbonate. :gw
Nipat’s rethink is a good one as Calcium carbonate raises GH and KH in equal measure.
Calcium sulphate will not raise carbonate hardness (in freshwater aquarium ranges anyway), alkalinity.
I have never used ADA Aqua Soil (or any other commercial substrate for that matter) so I cannot speak to ADA Aqua Soil causing cloudiness in high KH water. My experience with water cloudiness related to substrates is that it is usually associated with very light material producing very small particles.
I do use Plantex CSM+B, chelated iron 10 & 13% ETDA as well as 13% DPTA and I have not noted any cloudiness attributable to the iron or chelating agents in tanks with KH ranging from less than 1dKH to over 15dKH
I think you could run a variation of the demonstration I recommend http://www.barrreport.com/showthrea...m-Flourish-Iron)?p=54021&highlight=#post54021 here to see if chelated iron clouds water at a particular KH.
Biollante
Hi,
Calcium carbonate, CaCO3, simply is not very soluble in water. It is why most folks prefer, gypsum, Calcium sulphate CaSO4 or plaster of Paris, 2CaSO4.H2O that even though slow dissolving it is many times quicker than Calcium carbonate. :gw
Nipat’s rethink is a good one as Calcium carbonate raises GH and KH in equal measure.
Calcium sulphate will not raise carbonate hardness (in freshwater aquarium ranges anyway), alkalinity.
I have never used ADA Aqua Soil (or any other commercial substrate for that matter) so I cannot speak to ADA Aqua Soil causing cloudiness in high KH water. My experience with water cloudiness related to substrates is that it is usually associated with very light material producing very small particles.
I do use Plantex CSM+B, chelated iron 10 & 13% ETDA as well as 13% DPTA and I have not noted any cloudiness attributable to the iron or chelating agents in tanks with KH ranging from less than 1dKH to over 15dKH
I think you could run a variation of the demonstration I recommend http://www.barrreport.com/showthrea...m-Flourish-Iron)?p=54021&highlight=#post54021 here to see if chelated iron clouds water at a particular KH.
Biollante
ETDA, DPTA, Who Knew?
Hi,
I have been using the different types of iron chelators to see what happens. There had had been a lot of talk about precipitates and how long the iron remained effective with various types of chelators. I also tried iron gluconate.
So now, I have a bunch of 10 & 13% ETDA and 13% DPTA. I generally add iron to CSM+B something like one part iron to three, four or five parts CSM+B. Sometimes I just dose iron separately.
I find either ETDA or DPTA iron chelators work well. If you have higher KH then the DPTA is probably the better choice. I cannot say I have noticed a difference, though I am a Nutrient Type, so it may just be that I keep the levels so high that it make no difference.
Biollante
j_mc;54720 said:Why do you dose 3 types of chelated iron? I'm just rounding up ingredients for my own DIY fertiliser regime and am curious as to why.
Hi,
I have been using the different types of iron chelators to see what happens. There had had been a lot of talk about precipitates and how long the iron remained effective with various types of chelators. I also tried iron gluconate.
So now, I have a bunch of 10 & 13% ETDA and 13% DPTA. I generally add iron to CSM+B something like one part iron to three, four or five parts CSM+B.
Sometimes I just dose iron separately. I find either ETDA or DPTA iron chelators work well. If you have higher KH then the DPTA is probably the better choice. I cannot say I have noticed a difference, though I am a Nutrient Type,
so it may just be that I keep the levels so high that it make no difference. Biollante
Biollante;54723 said:Hi,
I have been using the different types of iron chelators to see what happens. There had had been a lot of talk about precipitates and how long the iron remained effective with various types of chelators. I also tried iron gluconate.
So now, I have a bunch of 10 & 13% ETDA and 13% DPTA. I generally add iron to CSM+B something like one part iron to three, four or five parts CSM+B.
I find either ETDA or DPTA iron chelators work well. If you have higher KH then the DPTA is probably the better choice. I cannot say I have noticed a difference, though I am a Nutrient Type,
Biollante
Hi
May I know will high dose of iron will make the tank water cloudy???
Not That I Have Seen
Hi,
I am reluctant to say iron will not cause cloudiness, simply because so many have said it does.
My experience that includes trying combinations is chelated iron does not cause cloudiness, certainly nothing in the 0.5-2ppm range that most aquarists use.
Perhaps above 12-dKH and over 10-ppm Fe 2 EDTA, it is possible I have seen some short duration cloudiness though I am not sure. Likewise, I have seen short-term cloudiness when using a Seachem product in high alkaline water that seemed to briefly cloud, almost smoke-like. However, that was before I was really paying attention to the precipitate.
Biollante
Hi,
I am reluctant to say iron will not cause cloudiness, simply because so many have said it does.
My experience that includes trying combinations is chelated iron does not cause cloudiness, certainly nothing in the 0.5-2ppm range that most aquarists use.
Perhaps above 12-dKH and over 10-ppm Fe 2 EDTA, it is possible I have seen some short duration cloudiness though I am not sure. Likewise, I have seen short-term cloudiness when using a Seachem product in high alkaline water that seemed to briefly cloud, almost smoke-like. However, that was before I was really paying attention to the precipitate.
Biollante
Calcium!
Hi Dario,
We add Calcium to raise the general hardness. Calcium is important for the health and well-being of our plants and critters. :gw
Calcium sulfate, CaSO4 is popular because it is cheap and readily available.
Biollante
cannibal;54729 said:
Hi Dario,
We add Calcium to raise the general hardness. Calcium is important for the health and well-being of our plants and critters. :gw
Calcium sulfate, CaSO4 is popular because it is cheap and readily available.
Biollante
Biollante;54757 said:Hi,
I am reluctant to say iron will not cause cloudiness, simply because so many have said it does.
My experience that includes trying combinations is chelated iron does not cause cloudiness, certainly nothing in the 0.5-2ppm range that most aquarists use.
Perhaps above 12-dKH and over 10-ppm Fe 2 EDTA, it is possible I have seen some short duration cloudiness though I am not sure. Likewise, I have seen short-term cloudiness when using a Seachem product in high alkaline water that seemed to briefly cloud, almost smoke-like. However, that was before I was really paying attention to the precipitate.
Biollante
I using ferrous gluconate
But then I not very sure on the amount to use for my 55 liters tank. So I use 1tsp mixed with 250ml water and dose 5ml into my tank alternate day.
Water get cloudy soon after ....
May I know the correct dry dosing amount if I using ferrous gluconate in 55litres tank??
Nipat As Usual Is Correct & Apologies to Jonny
Hi,
Nipat, as usual, remembers correctly! Iron gluconate does indeed break down more quickly than the other iron chelates. In return, the iron is supposed to be more usable.
I certainly would not wish to raise the carbonate hardness were I using iron gluconate.
Then I do not know anything about your alkalinity, so it is hard to say.
Biollante
Hi,
Nipat, as usual, remembers correctly! Iron gluconate does indeed break down more quickly than the other iron chelates. In return, the iron is supposed to be more usable.
I certainly would not wish to raise the carbonate hardness were I using iron gluconate.
Then I do not know anything about your alkalinity, so it is hard to say.
For all I know your alkalinity could be 0dKH, few aside from our friend Jonny would find that acceptable.
The iron gluconate would I assume be most effective. Same goes if you are raising certain plants that like 2-4dKH, again the iron gluconate would seem an excellent choice.
Once we emerge into what I consider the stable, “normal” ranges of alkalinity, 5-8dKH I think the iron gluconate is perhaps not as effective and iron complexed with ETDA or DPTA.
Most seem to agree that with alkalinity above 10dKH, DPTA seems most effective.
Biollante
Biollante;54758 said:Hi Dario,
We add Calcium to raise the general hardness. Calcium is important for the health and well-being of our plants and critters. :gw
Calcium sulfate, CaSO4 is popular because it is cheap and readily available.
Biollante
That I know before, I have Malawi Cichlids with high carbonate hardness 20 I think..In Croatia water that we drink have a high carbonate hardness, I messured 19,9..
I ask you why, because I'm think you use CaSO4 for fertilize plants
Don't laughDario
KH GH Who Knew
Hi Dario,
Carbonate hardness is alkalinity, KH, the buffering capacity of the water 20dKH is quite high but manageable. At that alkalinity, I think you need to dose iron chelated with DPTA; my guess is that the gluconate is not doing any good. :gw
Calcium sulfate, CaSO4 will add to the general hardness, GH.
I like to see GH above 4dGH I prefer 6-8dGH. If it is low adding Calcium and Epsom salts, MgSO4.7H2O raises the GH.
Biollante
Hi Dario,
Carbonate hardness is alkalinity, KH, the buffering capacity of the water 20dKH is quite high but manageable. At that alkalinity, I think you need to dose iron chelated with DPTA; my guess is that the gluconate is not doing any good. :gw
Calcium sulfate, CaSO4 will add to the general hardness, GH.
I like to see GH above 4dGH I prefer 6-8dGH. If it is low adding Calcium and Epsom salts, MgSO4.7H2O raises the GH.
Biollante