Dry kalkwasser

[Windy]

Over the last few months I have been fooling with an idea for continuous feeding of dry coral food. Right now it’s not something I need badly but I did complete a model just to try. It's a gallon container basically hung on the wall above the sump. It has an adjustable drip feed from the sump and an overflow tube that once started siphons about 1/4 of the contents of the container. So it fills very slowly, siphons 1/4^th , fills very slowly............ At the same time there is an air tube in the container to keep it well mixed. I intended to use an automatic feeder to drop products like coral frenzy into the device 3-4 times a day and with its mixing and dumping, the food would be introduced over a long period of time. I haven't tried it yet.
So why the long story? Well I have had some GHA and been dosing vinegar. My PH has been sliding and I decided to go with kalkwasser. But I got lazy and filled my feeder with Mrs. Wages Pickling lime and it is now dosing the feeder with dry kalk. I can even tie the feeder to the APEX and add based on it. Don't know how useful this is, but it’s been kind of amusing for me. Also, the siphoning/feeder idea is not mine but I can’t remember where I first saw it.


Here is a picture of the device with my APEX modified feeder.



Here is the siphon outlet

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[Randy Holmes-Farley Verified Community Expert]

The concern with adding dry calcium hydroxide are two fold:

1. Be sure it all dissolves before any solids get to any creatures.
2. There is the possibility of calcium carbonate precipitating on or near the dry particles as they dissolve.