Overdose

[ally--19]

droped a bottle of calcium in my new aquarium that is going to be my frag tank nothing is in it yet apart from 200gal of ro and salt what should i do

 

[rabbut]

How bad is the Ca reading? If it's off the chart high, I'd do a big waterchange, but that may not be that likely/needed. All the Ca suppliments that I have come across in liquid form are actually fairly weak and hence it may not be a problem, especially if your Salt brand is lacking Ca and you are talking about a 200g volume...

All the best
Rabbut

 

[Donya]

Similar to what rabbut said, since you didn't say how much Ca you dumped in, it would be worth getting a Ca test kit if you don't already have one if you don't want to change out the whole lot of water. The test kit reading and a few concentration calculations would tell you how much to change out to get the Ca within a reasonable range if it's out of whack.

 

[SkiFletch]

Agreed, tests are in order. Please tell me you removed the bottle?

 

[scott133]

HI

did you get a ca test kit

 

[Crazy fishes]

You can use sodium bicarbonate to precipitate the excess calcium out of the water, it may be cheaper than water changes??!!

Regards

 

[Colin_T]

it shouldn't be a problem because seawater can only hold a certain amount of calcium. Any more and it just doesn't mix into the water. I think the max is about 470ppm of calcium and above that it turns to mud
But if your concerned just do a 50-75% water change and that will dilute it.

 

[Crazy fishes]

........I think the max is about 470ppm of calcium and above that it turns to mud

I think it must be much higher than that as I accidently overdosed my tank and had a level of 690ppm for several months. It had no ill effects but did cause a snowstorm every time I dosed alkalinity!! Incidently my LPS corals loved it and grew like mad not that I'm suggesting this to encourage coral growth it's just an observation .

Regards