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Old 05-11-2013, 07:19 PM   #1
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Ro/di filter absloutly need?

Ok, what would happen if you don`t use an Ro/di filter in a saltwater aquarium. Are they absloutly nesscary. What would happen if I didn`t use one.Can I just a water filter like this one.https://www.petsolutions.com/C/Aquar...er-Filter.aspx
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Old 05-11-2013, 07:26 PM   #2
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RO/DI water isn't necessarily essential, but success starts out with the water you're using. RO/DI is pure water, no phosphates or silicates or any other mysterious dissolved solids that would be in tap water. RO water has a much lower TDS than tap water, but still can cause algae problems and other issues. For a beginner, RO water/distilled water is fine, but I recommend a RO/DI system if you can afford it. If not, get RO water at the very least. I've never seen that tap water filter used or reviewed by a saltwater hobbyist. There's used RO/DI systems you could get or some RO systems for $80. You want the lowest TDS reading possible.

THe link to the filter says only treats 50-150 gallons which is outrageous. Even for a nano SW tank, that cartridge would have to be thrown away in a month or two. Not worth the money.
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Old 05-11-2013, 08:10 PM   #3
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Thanks for saving from that buy then. I`m starting a new 20 nano reef and I want it to do its best, but I don`t have the cash to pay for a brand new ro/di filter. Would this one work? 0ppm Portable 100GPD Reverse Osmosis Ro Di Filtration | eBay
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Old 05-11-2013, 09:23 PM   #4
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Those look like a bunch of RO membranes. An RO system is 2-3 canisters with a RO membrane.
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Old 05-11-2013, 09:27 PM   #5
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Aqua Reef Ro Di Reverse Osmosis Water System | eBay

This is the cheapest I found on ebay that looks decent. I don't know the company or reviews or how long the filters last before needing to be replaced, but you can further research that if you wish. Even though it seems expensive at first, it will save money in the long run. If you don't want to spend a bunch of money right away you can get water from your LFS if they sell it or distilled water. It adds up though, and it's a pain to take back and forth. BRS RO/DI systems are great quality and popular, but I'd imagine you don't want to spend $200.
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Old 05-11-2013, 09:44 PM   #6
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Alright, thanks. Yeah, I defintly don`t have the money for a 200 dollar unit right now. I trying to find one in the 50- 70 range
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