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Old 11-22-2004, 10:46 AM   #11
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Yes, calcium and Alk are related and need to be in balance with one another.

As for the salifert test...sounds like my SeaChem reef success Calcium test kit. The single drop titration is necessary for accurate testing. Cheaper test kits which don't do a titration will give you very inaccurate results (typically they just give 10-50ppm type ranges, or low-medium-high).

Stick with the Salifert, and remember that reef keeping is a slow, patient, methodical hobby which requires plenty of water tests.
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Old 11-22-2004, 08:12 PM   #12
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One more qeustion on this subject of Ca/Alk and dosing. Is it OK then to add them both at once and does it really matter what time of day to add them. My LFS (a decent one) said to only dose one at a time and then to only do this in the morning when the pH is the lowest, is this important or not?

I really only have time in the evening for things so hope this won't matter when it is done or if both at once...

Also, I assume you can dose aerated water for evap top off the day before, as dosing and adding right away makes the tank a little cloudy for a while it seems...

Thanks again!!
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Equipment: 33G SW Reef tank (pic), 192W Coralife PC lighting, PHs for H2O circulation, Red Sea Berlin Classic Skimmer
Aquascaping: 3" DSB, 50lb live rock (~35 lbs home made Cement Base Rock)
Clean Up Crew: Blue Leg hermits, Cerith snails, Astrea Snails, Stomatella snails, Brittlestar, banded brittles.
Critters: Hawaiian feather duster, Coral Banded Shrimp, Emerald Crab
Corals: Open Brain Coral, Cabbage coral, 4 RBTAs, Melon mushrooms, green Zoos, yellow polyps, finger Leather, orange Zoos, Brown Zoos, Chocolate Zoos, Xenia, GSP, Kenya Tree Coral, 2 acropora SPS, blue sponge, candy cane
Fish/Inverts: Maroon Clownfish, Scooter Blenny, Coral Beauty dwarf angel, Sea Hare
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Old 11-22-2004, 08:14 PM   #13
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My ESV B-Ionic instructions say to dose Alk, wait for the cloudiness/snowstorm to stop, then do the Ca. It also recommends the morning.
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Old 11-22-2004, 08:21 PM   #14
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OK, I'll likely just do them on separate days then or alk in prepared water, then add ca at time it's going in the tank. Anyone know why this is, is it just a pH thing or what??
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Equipment: 33G SW Reef tank (pic), 192W Coralife PC lighting, PHs for H2O circulation, Red Sea Berlin Classic Skimmer
Aquascaping: 3" DSB, 50lb live rock (~35 lbs home made Cement Base Rock)
Clean Up Crew: Blue Leg hermits, Cerith snails, Astrea Snails, Stomatella snails, Brittlestar, banded brittles.
Critters: Hawaiian feather duster, Coral Banded Shrimp, Emerald Crab
Corals: Open Brain Coral, Cabbage coral, 4 RBTAs, Melon mushrooms, green Zoos, yellow polyps, finger Leather, orange Zoos, Brown Zoos, Chocolate Zoos, Xenia, GSP, Kenya Tree Coral, 2 acropora SPS, blue sponge, candy cane
Fish/Inverts: Maroon Clownfish, Scooter Blenny, Coral Beauty dwarf angel, Sea Hare
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Old 11-22-2004, 08:23 PM   #15
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Any type of additive that buffers alkalinity is best added in the AM. Even if you do it just before leaving for work. It definately reduces the impact to the daily change in pH. The Ca additive can be added at any time but should be done so several hours after the alk addition to be on the safe side. For most of the 2 part liq, you can usually add it much sooner depending on the water flow of the tank.

Cheers
Steve
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Old 11-22-2004, 08:32 PM   #16
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OK thanks everyone, I guess once you get used to things, it will be less time consuming working with the test kits and dosing. For now, I'll do it as I can and get into a routine for AM delivery then. Thanks Mate!!
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Equipment: 33G SW Reef tank (pic), 192W Coralife PC lighting, PHs for H2O circulation, Red Sea Berlin Classic Skimmer
Aquascaping: 3" DSB, 50lb live rock (~35 lbs home made Cement Base Rock)
Clean Up Crew: Blue Leg hermits, Cerith snails, Astrea Snails, Stomatella snails, Brittlestar, banded brittles.
Critters: Hawaiian feather duster, Coral Banded Shrimp, Emerald Crab
Corals: Open Brain Coral, Cabbage coral, 4 RBTAs, Melon mushrooms, green Zoos, yellow polyps, finger Leather, orange Zoos, Brown Zoos, Chocolate Zoos, Xenia, GSP, Kenya Tree Coral, 2 acropora SPS, blue sponge, candy cane
Fish/Inverts: Maroon Clownfish, Scooter Blenny, Coral Beauty dwarf angel, Sea Hare
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Old 11-23-2004, 10:29 AM   #17
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are you topping off with aerated tap water? If so, I wouldn't unless your tap water has no hardness.
topping off for evaporation with semi hard tap water will increase the alk in the tank, since minerals don't evaporate.
case in point: my tap water is 8dKh and 11dGh. however the 20gallon upstairs is open-top so I do lots of top offs...it's now up to 13dKh and 17dGh in just 3 weeks. Not a great idea for FW...certainly not good for SW.
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Old 11-23-2004, 03:08 PM   #18
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I use the Salifert test kits for CA, MG, ALK, Phosphate, Iodine, and Stront. I really like them. Although in particular, the Ca one has 1 bottle (CA-2 I think) that needs to have a better dropper on it. Sometimes it is difficult to get 8 good drops and have to start over. I agree that you need to test for ALK, and MG to get an idea of how balanced the water is. You might want to test your fresh SW too so you know what you are adding to your tank. Also, shelf life is important. I replace all my test kits every 3-4 months after they are open. Be careful not to contaminate the reagents
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