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Jeter22

Aquarium Advice Apprentice
Joined
Jan 27, 2011
Messages
37
Location
West Des Moines, IA
I recently purchased an RI/DO water filter. I'm using a garbage can to keep the RI/DO water in and mixing my salt in. I have a lid on the garbage can but do not have a power head in it to circulate the water. Can someone tell me how long I can keep this water before it goes bad to do a water change?

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You need a powerhead and heater. The powerhead to thoroughly mix the salt and the heater to keep it more or less the same temp as your tank water.


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I do the same. I have a heater in the barrel. I have a pump on a switch that I use to pump into buckets. I don't mix the salt until after I pump it out. This way you can use pure water for top offs and mix the salt in buckets for water changes. BTW, it's RODI. Reverse osmosis de-ionised.

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To answer your question, it all depends on how much you use. I have a 150 gallon so I change 15 gallons a week. That's all my barrel holds so I replenish it once a week. It doesn't have a chance to go stagnant. That's why I get away with no power head for circulation.

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Gotta be careful what kind of trash can you keep it in. Lots of plastic cans that leach chemicals into make up water. I like the big brute 50 gallon trash cans. I don't think you have to worry about a time limit otherwise.

I change 20% once a month. I make up the water with tap and salt, let it circulate with a small power head overnight, and change the water next day. I vacuum half the sand bed and leave the filter alone. It works for me and my fish are fine. At room temp, there isn't enough of a temp swing to cause a problem with 20% for me.
 
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