• Looking to buy a cephalopod? Check out Tomh's Cephs Forum, and this post in particular shares important info about our policies as it relates to responsible ceph-keeping.

Quick Question

Are you asking if that is okay for you or for Owais?
Owais is in a different country where the water treatment systems are different and we don't know the condition of the tap water. That is why we are not sure if the tap water is safe to use.

erin
 
sorseress;124714 said:
I wouldn't even consider doing that. It doesn't cost that much to buy RO water, and it will be much safer.

I was assuming the "filter" was an RO/DI system, but looking back, that's not really clear. If it is, that should be as good as buying RO water... but if it's just a drinking water filter, that's more aimed at being good for humans than aquatic critters...

As far as Dubai water and the LFS person, it's worth noting that there are some trace substances in water that are OK for fish, but bad for cephs, most notably copper, so if this marine specialist is used to mixing water for fish rather than cephalopods, there may be some difference.

The reason I asked about desalination was that American tapwater has a lot of things done to it to clean it up for drinking that are probably not needed for desalinated water, which is pretty pure anyway, but on the other hand they may still do things like add fluoride, and they may not worry about copper pipes since copper is not a problem for humans. The safest thing would still be to have an RO/DI system, or use fresh seawater for water changes, although having a clean freshwater top-off, as I mentioned earlier, would still be good, but you could probably just buy RO/DI water for that (distilled might be OK, but there's some debate about that.)
 
Thanks guys, anyway its not that big of an issue because the next time I change the water I am going to use fresh saltwater from the beach.

Another question, how much live rock would I need for 80g tank ? now I have 10kg of live rock so I was wondering how much more I would need.

Thanks, Owais
 
One last thing about collecting your own sea water. Fresh water will float on top of salt water for a while before it mixes, so if you collect your water near the surface after a rain, or near the mouth of a river or stream, you could get a bucket full of mostly fresh water. Does it rain in Dubai? Are there any streams or rivers?

contaminated runoff can also be a problem after a rain, especially if it doesn't rain often, so don't collect water from near the coast for a few days after it rains, especially near populated areas.
 

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