Issue With Mixing Synthetic Salt In Water

achit

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Hello everyone,
I recently decided to take the plunge into keeping a nano reef. I am a bit new to the hobby, having (poorly) kept a freshwater setup many many years ago. But times have changed, and after doing much research, I felt that I was ready to take up this new challenge. What could possibly go wrong this time !!!

I went out and bought myself a shiny new Boyu TL-550, which seems to be a popular choice for a lot of people here (so excited to be a part of the club !!) Took the advice of what was suggested here, removed the ceramic rings, bioball, and that big black filter sponge thing at the back. Got all my test kits and salt mix, and was ready to go !

Well, unfortunately, I seem to have stumbled a bit on the very first and most basic step, mixing my seawater. Now, first I think I should mention that I am facing a unique challenge in my quest to build my first reef. I live out in the middle of the desert (I'm an expat living in Dubai, U.A.E to be exact). Now, there is a serious problem with availability of equipment in this area. For example, the option of using Aragonite sand is just not available for me, it has to be either Crushed Coral or bare bottom. Also, neither is the option of using RO/DI water. The only RO/DI units I can find here are industrial scale, costing over $5,000 and can make enough water to service a small city. Similarly, distilled water just isnt available in any supermarkets. Most aquarium stores here use conditioned tapwater, or just use seawater.

So back to my problem. Im a little worried about heavy metal contamination from the tapwater here since it sits in copper pipes which are god know how corroded. I decided to try using bottled water. The brand I'm using is essentially RO seawater that has been made fit for drinking. I have the water composition with me here somewhere....i just cant seem to find it atm for some reason, but it seems to be fairly ok.

The problem is when I mix my Instant Ocean brand salt (as a note, the batch that i got seemed to have absorbed quite a bit of moisture and was hard as a rock) into the water, even after vigorously stirring, putting in a big powerhead, and leaving it in the bucked for more than 48 hours, the water is thick and murky. There is a white precipitate, which im pretty sure is Calcium Carbonate, which is choking up my water. I have read that this is a common problem, and usually clears up after a while. However, the sheer amount of precipitate I am getting (both larger particles which are settling in the bottom, and fine suspended particles) makes me believe that there is something wrong.

Anyhow, I was wondering if anyone had any idea as to why this is happening. I later tried the same thing with tapwater, and I still get a thick chalky precipitate. This is quite disheartening to have run into trouble so early on. The LFS here uses tapwater, and a different brand of salt, and claims to have no problems. I tested the pH of the chalky water, and it seems to be between 7.8 and 8.2 (im still figuring out how to use the kits, its really hard to make out the color differences sometimes, maybe another brand kit is in order). I tried using an aquarium pH reducing solution in my tank, and the precipitate cleared up right away. After retesting my pH, I expected the acid to have lowered my pH, but I was shocked to see that the acid is actually *increasing* my water pH (the acid lower the pH of freshwater, as advertized however). So I am thoroughly confused as to what is going on here.

I apologize for the long rambling post. Hopefully its not too much of a wall of text for people to read. Does anyone have any idea of this strange phenomenon ??
 
Ok....a question: when you dissolved your salt did you heat your water as you did it? This does make a difference to the solubility of salt and Calcium Carbonate. Im guessing the pH reduction stuff (being an acid) reacted with the calcium carbonate and likely displacing the Carbonate ions in preference (bit of low level chem) due to the electronegativity. So you would get dissolved Calcium and whatever acid you used and carbonate ions...increasing your pH by neutralising your acid. I think that works roughly (assuming you had it correct).
 
Yes, I had my little waterheater in there and the water at 25 C before mixing the salt. It didnt really seem to help in preventing the precipitate. So far the pH reducer seems to have done the trick. If I can figure out the correct dosing for the acid when i mix my water, would this be a safe solution to my problem ? I'm guessing that as long as my pH is in a safe range it should be alright. Maybe a test for calcium is in order to see if my calcium ion concentration increases because of the CaCO3 dissolving. Would there be be any other potential complications if I were to clear up my water using this method ?


I have bought a different brand of marine salt as well. This one isnt caked and crusted because of moisture like my old one. Maybe this will solve the problem without any acid solution as well..

One can only hope...
 
Try the other salt first...my only worry with the balance is its probably not going to be easy to determine or maintain the pH stability...hopefully since its dry you shouldnt have any problems with a semi-saturated precipitate.
 
Thank a lot for the reponse Xebadir !

Im going to try the other salt brand first, but acidifying the mixture will be a last resort. You mention pH stability as well. Its going to be interesting to see how that pans out. Im worried that this may not end up being a solution to the problem, but just more like a band-aid quick fix.
 
Don't worry, exactly the same thing happened to me - I used salt I would have used for my brackish set-up which had got moisture in it :crazy:

Put the black filter sponge in the back weir - get your power head to kick up the salt that has settled at the bottom and let the sponge take out the bits for you - took mine about 24 hours after I think it was Ski told me what the problem was - precipitation.

When clear, test for SG and add any extra salt you might require - if you go to the fisrt few pages of my thread you will see i had the same problem :crazy:

Oh and by the way :hi: to the salty side and :hi: to the 550 club :good:

Seffie x

:fish:
 
Hi Achit!

i also have a tl550 and i luv it!
just a few things to rem as iam a noob also
ive been reading a lot and learning, ive learned that
when u raise the salinity your PH can rise ...and the more surface movement
effects the ph also....
just something to chew on
but i sympathise with your situation in Dubai..couldnt u get a RO and adapt it?

Kip
 
Thanks for the welcome to the 550 club Seffie :D I'm pretty excited about the whole thing, this being my first real try at keeping an aquarium (my disaster with a freshwater setup was almost 10 years ago and I was very clueless back then). I think the moisture getting into my old batch of salt was causing a lot of problems. I hope this other brand of salt that I have will work better. Its what my LFS uses (along with conditioned tapwater), and he claims to have no problems.

Kip, the situation in Dubai is indeed a bit grim. Most of the LFS here are pretty clueless and the quality of livestock and equipment is fair at best. I cant figure out for the life of me why grocery stores dont keep distilled water. Im sure that there is someone selling home RO units somewhere in this city, but its almost impossible to find such a place. The whole e-commerce phenomenon is non exsistant here, and most businesses dont even have a website. Its an interesting place to start this hobby I must say. But hey, if I can keep a marine setup successfully here, I can do it anywhere !
 
:hi: achit To the salty side and the 550 club (I love that name :rofl: )

I'm looking forward to this thread and seeing how you overcome the problems, I'm a newbie too, but if I can help at anytime I will be glad to :good:
 
Thank you Trod ! I have browsed through a fair shair of marine aquarium fourms, but people here have always been the most patient and friendly (especially with newbies), which is why I'm glad I decided to start my adventures on the salty side here :lol: . I will keep this thread update with any progress, and hopefully even have a few pictures of the tank in once I get it to stop looking like there was a snowstorm inside it.

and viva la 550 club !!
 
Thank you Trod ! I have browsed through a fair shair of marine aquarium fourms, but people here have always been the most patient and friendly (especially with newbies), which is why I'm glad I decided to start my adventures on the salty side here :lol: . I will keep this thread update with any progress, and hopefully even have a few pictures of the tank in once I get it to stop looking like there was a snowstorm inside it.

and viva la 550 club !!

lol I know the feeling there, mine was cloudy for days and Trods cleared in minutes :crazy:

Seffie x

:fish:
 
Went to the LFS today to buy another powerhead. Seems like you can never have enough of these things. Now I have a question...

This is a tiny compact little powerhead rated at 375 l/hr. I want to keep two of these in my tank, possible one near the top (close to water level) and one at the bottom ( a few inches off the substrate), both of them pumping water in opposite directions. Will this be enough to stimulate some good flow and water turbulence ? I read somewhere that I need to have a total of 900 l/hr for the TL 550.

The LFS had a new batch of fish in too..including the most gorgeous looking Cocoa Damsel I have ever seen. It really makes me sad sometimes, Damsels are just such nice looking fish, but such little devils. If only there was a way to beat some sense into them to make them better community fish. Anyway, there is still time to think about livestock... for now its back to worrying about if my stupid salt will mix :grr:
 
Most of us on the nano secion use Hydor powerhead - really good :good: You want to be looking for 20 x flow.

As you say, Damsels are pretty little :devil:

Seffie
x

:fish:

ps on the info under your name - let people know where you are :thumbs:
 
Hummm...I think I seriously underestimated the flow that I need. I havent been able to find the Hydor Korelia anywhere in this city so far. Most likely I will have to make do with 2-3 separate powerheads.

2400 l/hr would mean that I need 6 of these little guys... that wont do at all !!!

Oh well, time to shop around for a bigger powerhead

Also, thanks for the tip with the location thing Seffie !
 
Hummm...I think I seriously underestimated the flow that I need. I havent been able to find the Hydor Korelia anywhere in this city so far. Most likely I will have to make do with 2-3 separate powerheads.

2400 l/hr would mean that I need 6 of these little guys... that wont do at all !!!

Oh well, time to shop around for a bigger powerhead

Also, thanks for the tip with the location thing Seffie !

Do you have Ebay? If you haven't look for the nearest country to you and then buy from there :good: or just ask for shipping costs

Seffie x

:fish:
 

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