Kalkwasser - how exactly do you use it??

drew2582

-The holy hand grenade-
Dec 1, 2005
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Just over the weekend I bought a canister of seachem kalk. at my lfs. It is the first time I have ever used it. Now the fella that runs the store was very unclear on how to use the product. But here are the directions....


DIRECTIONS: Never add this product directly to the tank. Add 3 g (1 teaspoon) to 4 L (1 gallon*) of water and mix to dissolve. If using pure water, a fully saturated solution is prepared by adding 6 g (2 teaspoons) to 4 L (1 gallon*). Drip this solution into tank. Monitor pH and carbonate alkalinity. Adjust rate of addition to maintain a stable pH (8.3–8.4). HINTS: Adding 4 L (1 gallon*) of a saturated kalkwasser solution to 150 L (40 gallons*) will raise calcium by 24 mg/L. Always use the clear supernatant (top solution) only and do not allow undissolved material to enter the aquarium. Keep this container tightly closed when not in use and minimize solution/air contact to avoid calcium carbonate formation/precipitation.


So i guess my question is the 3 g / gal solution is just for when your doing water changes and the saturated 6g / gal solution is for adding water to make up for evaporate- is this what everybody else gathered???

I have been adding some of the 6 gram solution to the tank and ive noticed a skin developing on the top which looks exactly like the skin that had developed on the top of the five gallon bucket that i mixed the kalk in.
Also I don't have a drip mechanism so I've just been adding the 6 gram solution every other day or so. I removed my glass canopies so more evaporation would take place and ultimately more limewater would be introduced to the tank - do you think this is a safe practice. Do I have any legitimate cause for concern??? Everyone in the tank is doing fine, am I just being a bit finicky???

Anywho, sorry for being so long winded, any feedback will be appreciated.

Regards,
Drew
 
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So i guess my question is the 3 g / gal solution is just for when your doing water changes and the saturated 6g / gal solution is for adding water to make up for evaporate- is this what everybody else gathered???
Sounds like a good guess, but I have never added it directly to saltwater.

There's more than one way to do it, but I generally use a saturated solution of kalk in RO water for all the evaporation makeup. I have mine set up to deliver it in small doses during the night and early morning, to keep the pH from swinging around too much, but you can also add it manually. Night time is a little better, because tank pH is usually lower then.

If you find your alkalinity dropping, then you might add a little vinegar (up to about 75 ml/gallon) to the kalk solution.
 
well this is what i did for my smaller tank. (had no problems with it) and am doing now for the big tank. buy a drip tap (either from a lfs or DIY store ) get a 1 litre plastic bottle. heat up a screwdriver with a candle.. drive the screwdriver through the side of the bottle ( as low as possible ). shove in the tap. then super glue over the part where the tap and the hole connects.

let dry .. and everytime you wanna put in kalkwasser.. mix 1/2 a teaspoon to a full bottle of freshwater ... stir well and let drip over the tank

this is what i do ... im just a poor student who cant afford hi tech stuff. wish i did have those gadgets tho. it would be cool to have my kalk automatically added to the tank.

i just realised though .. that my kalk might be a different brand .. so the amt to use would be diff i guess
 
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Appreciate all the input - all in all I've added about 2.5 gal of the limewater and the calcium has stayed at 400 ppm so I'm not going to worry about it unless it changes.
 
jacobus said:
drive the screwdriver through the side of the bottle ( as low as possible ). shove in the tap. then super glue over the part where the tap and the hole connects.

let dry .. and everytime you wanna put in kalkwasser.. mix 1/2 a teaspoon to a full bottle of freshwater ... stir well and let drip over the tank

No experience with this, but if you have the tap at the bottom of the bottle, wouldn't you be dripping the kalk precipitate from the bottom of the bottle into the tank?
 
umm not really .. see the tap i have from the lfs has a short plastic tube attached to the ends ... and u dont add so much kalk that the precipitate would be very deep ... so its ok .. i also put the tap in at a 45 degree angle so the plastic tube's quite high ... i usually end up with only precipitate in the morning ..so its fine i guess
 
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