Phox's Aqueon 75G Reef Tank

[Reyphox]

With this tank I am going to attempt to severely cut water changes with a combination of strategies using Chaeto, GFO and NO3:PO4-X to control nitrates and phosphates. These will be put in place and tuned as needed. I will be dosing Trace Elements with Red Sea Coral Colors.

I needed to figure out how much trace elements to dose. I use Reef Crest 2 Part System so I though I'd come up with a number to easily work this out for myself and anybody else who may use Reef Crest and be interested in using RedSea Coral Colors. So far this is what I have come up with. If you see anything wrong with my math, let me know!

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The instructions on the RedSea containers say use 1mL of additive for every 20ppm Calcium added per 100L when using 3rd party products.

First off, I got a number of http://reef.diesyst.com Reef Calculator that ~0.0139g of Calcium Chloride to increase 1 gallon of water by 1ppm.

A bag of Reef Crest Part A Calcium contains 400g of Calcium Chloride.

This is mixed into 1 gallon of water which is equal to 3785.41mL

So 3785.41mL / 400g is a ratio of 9.463mL:1g

RedSea instructions are in Litres so converted 100L to 26.4172 gallons

26.4172 Gallons * 20ppm = 528.34ppm if the volume was of water is 1 gallon.

528.34ppm * 0.00139g = 7.34g of Calcium Chloride used to raise ~26 gallons/100L by 20ppm

9.463mL * 7.34g = 69.5mL of mixture Reef Crest Part A Calcium Solution

Therefore if my calculations are correct, for every 69.5mL of Calcium dosed, you must add 1mL of the RedSea Coral Coral Additives when using the Reef Crest 2 Part System.

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