Marine Tank at work. A few questions

Fish@Work

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Jun 4, 2004
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Hello.

At my new job they have a beautiful 90 gallon marine fish tank. I have been put in charge of maintaining it since I used to have freshwater tanks. Anyway, a question. It's a little low on water, so I'd like to add some, but I'm not sure of the procedure. I've been told to remove about 10% of the water. We have some Crystal Sea salt and some declorinator. Could someone please let me know the procedure for treating this water before adding it to the tank? Thank you very much! :)
 
I would go ahead and do a water change. Remove about 10-15% of the water. Before removeing the water premix your salt water in a bucket. Make sure you do the water changes weekly
 
if you are just talking about the water that has evaporated from the tank, just add decholrinated tap water, or better yet, ro water. you do not need to add salt for top-offs, since the salt does not evaporate. if your talking about an actual water change, then just ignore me :p
 
It's OK for a fish-only system. The fish don't seem to mind (some breeders use that specific gravity), but invertebrates won't like it.
 
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