Thursday, June 18, 2009

How I do water changes

This post has been long anticipated and I am happy to finally get it out. First off I highly recommend an RODI (reverse osmosis de-ionization) unit to remove the dissolved solids and minerals from your water. These are readily available and are reasonably priced based on output and filter capacity. I use a coral life 24 gallons per day unit.
My Unit (note: yellowing filters are a sign you need to replace them)

I run the RO every week to fill my 30 gallon trash can it takes about a day and a half to fill. I use this water to make kalk and topoff my reef. I then transfer the majority of the water to my saltwater mixing and aging bin. I use a pump to push water to this bin. (Note: this is not all the way full because of a recent water change)I then add the salt (I use Seachem reef or Tropic Marin) which is mixed with an old heater and power head. I test with a refractometer to measure salinity. I aim for between 1.024-1.026. I age the salt in this environment for 3 days and I add an airstone for increased oxygenation about 24 hours before I want to do a waterchange.
I then test the water with my pH meter just be sure I am in the right range and something is not amiss. Then I simply use a pump to push water in to the tank and a siphon to get water out. Just remember to use lots of towels :)

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