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Old 12-16-2014, 02:37 PM   #1
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75 gallon conversion

My friend has a 75 gallon freshwater aquarium with a sand substrate. He has a power head in it right now. He wants to convert to saltwater. Does he have to completely clean out the tank or can he use the same sand? Sorry if some of these questions seem stupid just wanting to know what he needs


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Old 12-16-2014, 05:49 PM   #2
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Yup, he will need to empty and clean it completely - the bacteria in saltwater is different to fresh and it's also recommended to use Ro-di water to fill the tank (not tap)


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Old 12-17-2014, 01:15 AM   #3
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Also what is better for a saltwater this size a canister filter or a refugium


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Old 12-17-2014, 01:38 AM   #4
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The sand used in freshwater tanks isn't ideal for saltwater. It's full of silica, and has no buffering capacity


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Old 12-17-2014, 01:40 AM   #5
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No canister, RODI water, sump and protein skimmer come first.


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Old 12-17-2014, 01:49 AM   #6
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With the sump. Do you prefer to buy one or make your own? And I don't quite understand the different between a sump and refugium. Again I'm still learning so be patient lol


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Old 12-17-2014, 02:18 AM   #7
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A sump is where you keep your filtering water. My first stage is center (sock) baffled into the right (protein skimmer) then baffled again under to the return pump where I run chemipure. An excellent local fish store is a must.


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Old 12-17-2014, 02:23 AM   #8
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A refugium contains active algae, sometimes in the sump or somewhere in the filtration chain, which helps to remove dissolved organic compounds naturally. It's another step to keep your tank clean.


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Old 12-17-2014, 02:31 AM   #9
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PS a sump can be a refugium as well, I just run mine with socks. My fish would relocate if I stopped feeding them like I do....


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Old 12-17-2014, 10:53 AM   #10
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Would a wet dry with bioballs do the same instead of having a refugium with actual algae


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