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Water quality pre-cycle

chad

Cuttlefish
Registered
Joined
Mar 9, 2015
Messages
25
I am wondering if it is safe to use water straight out of the faucet, without any sort of RO/DI filter. I live in Fort Collins, CO and the ppm level out of the faucet is 75. I do have an RO/DI unit and have been using it but this question came across my mind and i thought id get some thoughts on it, my RO/DI unit does get the ppm level to 0 so no problems there. Thank you for any input

Chad
 

DWhatley

Kraken
Staff member
Moderator
Joined
Sep 4, 2006
Messages
20,870
IMO, it is absolutely necessary to use RO/DI water for a ceph tank and highly desirable for inverts in general. RO/DI does more than lower the particulate matter suspended in your water. The pre-filters and carbon remove particulates and remove chemicals put in the water to keep it safe for drinking but are not all that good for you to drink (and can kill even freshwater fish). I know some areas of TX (and other states) use Chloramine which is hard to remove and may still show as ammonia in the water after RO/DI filtering. The RO component further filters suspended contaminants. The DI component (the "sand") attracts and traps metals/minerals (the primary reason DI water has no taste and bottled water producers add minerals back to their product). So, a lot of the "need" depends upon your water source but all government provided water will have, as a minimum, some type of bacteria killer that has to be removed.
 

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