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Old 02-14-2016, 02:17 AM
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Kalk is not as reliable and very caustic, reactors are stable and easier and two-part for smaller setups is safer too.
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Old 02-14-2016, 03:21 AM
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I use it religiously. Love the stuff. I have a 10 gallon Kalk tank that has an Innovative Marine Accu-Drip that goes into the return section. Works great. I rarely have to supplement Ca or Alk. My drip is set to about 1 per second. Keeps my parameters very stable.

I would use a reactor and use it with my auto top-off, but I evaporate about 7 gallons of water a day, so I think that would be a little much.

You just have to worry about swings. I got really sick a couple weeks ago, and let it run out. With no kalk dripping on my system, my alk dropped to 5.4 dkh. Got kalk burn on all the tips of my SPS. I'm about a week after getting my levels all correct again, and the corals are almost back to normal. But goes to show you that things can go wrong if not attended to properly (like everything in this hobby).

Kalk on low-medium demand tanks is still a great way to supplement the tank IMO.
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Last edited by FishyFishy!; 02-14-2016 at 03:23 AM.
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Old 02-14-2016, 03:47 AM
dcw1sfu dcw1sfu is offline
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I use a kalk stirir with a separate 50ml/min dosing pump for accuracy. I also dose 2 part but like the kalk for its PH raising properties and ability to bind phosphates.
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Old 02-14-2016, 04:13 AM
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I am looking to set up 2 part dosing, right now I just add manually but it seems that kalk has lots of benefits.
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Old 02-14-2016, 05:41 AM
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I use kalk in my ato in my 125g set up (160g total water) works good I still need to dose calcium and mag manually I evap about 5 gallons every 2.5 ish days depends on summer or winter , and I keep the mix saturated In my 10 gallon ato tank works good I say give it a try
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Old 02-14-2016, 06:02 AM
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I've never had better results than when I used kalk. In fact, I've gone back to it recently with this modified reactor:



Pretty simple setup; modified the lid of an old Vertex UF-15 to run 1/4" lines -> built a base with a computer fan -> threw magnets on that -> tossed a magnetic stirring bar into the reactor -> connected to ATO -> BAM!

Edit: Hmm, image doesn't seem to be showing, but if you right click on the icon and "view image", it will take you to it.
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