First time tank filling question

newguy1233 · 10/13/2010, 01:50 PM

ok got a question, When filling up the tank for the first time do i really need to us rodi since it will be replaced from then on with ro/di.
I have one but was just woundering.

thegrun · 10/13/2010, 01:57 PM

Yes, use RO/DI water. Using tap water will add pollutants to the tank, starting you off on the wrong foot. You could waste months fighting preventable issues with algae growth and other issues.

Clams55 · 10/13/2010, 01:57 PM

Depends. If you don't mind initial algae/diatom blooms, and your water has nothing too bad in it (The bad stuff: lead, copper, extremely high or low pH etc.) you should be relatively OK, but I would definitively test your water first. Hence, unless your tank is huge, and your RODI is really small, go with the RODI. It'll save you time.

newguy1233 · 10/13/2010, 02:04 PM

rodi unit is 75gpd and its a 75gal tank. I will just go ahead and use the Ro/di.

thanks

Marmot74 · 10/13/2010, 02:08 PM

I agree 100%. I just filled my first tank and it's a 180g and my RO/DI is 75gpd as well. Took a few days but it's all good

Why take unnecessary risk....

sjmertl07 · 10/13/2010, 02:12 PM

What is RO/DI??? I have to start my 55 gal saltwater tank over as I lost all my fish today. So I wanted to see what that was - thanks in advance.

Serena

thegrun · 10/13/2010, 02:15 PM

Quote:

Originally Posted by sjmertl07

What is RO/DI??? I have to start my 55 gal saltwater tank over as I lost all my fish today. So I wanted to see what that was - thanks in advance.

Serena

Reverse Osmosis/ Deionizer water. Basically pure water. Tap water contains all sorts of unwanted chemicals that will build up in your tank over time and cause problems.

Clams55 · 10/13/2010, 02:18 PM

Reverse Osmosis is a process where water is forced, usually by the pressure in your mains, through a semi-permeable membrane to filter the water you use to top off and do water changes on your tank. It is rated by membrane type, Thin Film Composite (TFC) being the best. RO filters usually include pre-filters, to save your fairly expensive membranes. De-Ionization is a 2nd stage filter that can be placed after the RO membrane for even purer water, usually reserved for reef tanks. The filters are also rated by gallons per day (GPD), and the size you need depends on how big your tank is. I purchase my RODI supplies from Bulk Reef Supply which is an excellent place. Hope this helps!

streak · 10/14/2010, 03:46 AM

I hope you got a refillable cartrage on your DI i do and i bought a 4lb mixed resien bag for 25bux from air water and ice got a discount for ordering it with a typhoon III not plugging the company but it last me a good while when i see the tds creep up.. I am also thinking about adding a second DI chamber to have lab quality water.. I have some pretty high tds in my input water.. and running my booster pump at 75 psi seems make my straight ro go up even though its a 150gpd 98% rejection membrain.. suposedly... if not im gunna get 2 75s that are for sure..

10/13/2010, 01:50 PM	#1
newguy1233 Registered Member Join Date: Jul 2010 Posts: 66	First time tank filling question ok got a question, When filling up the tank for the first time do i really need to us rodi since it will be replaced from then on with ro/di. I have one but was just woundering.

10/14/2010, 03:46 AM	#9
streak Reef Madness! Join Date: Aug 2010 Location: Perryville, Missouri Posts: 616	I hope you got a refillable cartrage on your DI i do and i bought a 4lb mixed resien bag for 25bux from air water and ice got a discount for ordering it with a typhoon III not plugging the company but it last me a good while when i see the tds creep up.. I am also thinking about adding a second DI chamber to have lab quality water.. I have some pretty high tds in my input water.. and running my booster pump at 75 psi seems make my straight ro go up even though its a 150gpd 98% rejection membrain.. suposedly... if not im gunna get 2 75s that are for sure.. __________________ The Shoe String Budget Reef Aquarium. Possible?? Compared to 7 55 breeding Discus days well we see and try! :P Current Tank Info: 10g nano with 2 clowns 1 Royal Gorama 1 RBTA!

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10/13/2010, 01:57 PM	#2
thegrun Registered Member Join Date: Dec 2008 Location: Garden Grove, Ca Posts: 17,023	Yes, use RO/DI water. Using tap water will add pollutants to the tank, starting you off on the wrong foot. You could waste months fighting preventable issues with algae growth and other issues.

10/13/2010, 01:57 PM	#3
Clams55 Registered Member Join Date: Oct 2010 Posts: 72	Depends. If you don't mind initial algae/diatom blooms, and your water has nothing too bad in it (The bad stuff: lead, copper, extremely high or low pH etc.) you should be relatively OK, but I would definitively test your water first. Hence, unless your tank is huge, and your RODI is really small, go with the RODI. It'll save you time.

10/13/2010, 02:04 PM	#4
newguy1233 Registered Member Join Date: Jul 2010 Posts: 66	rodi unit is 75gpd and its a 75gal tank. I will just go ahead and use the Ro/di. thanks

10/13/2010, 02:08 PM	#5
Marmot74 Registered Member Join Date: May 2010 Location: North Vancouver, BC, Canada Posts: 58	I agree 100%. I just filled my first tank and it's a 180g and my RO/DI is 75gpd as well. Took a few days but it's all good Why take unnecessary risk....

10/13/2010, 02:12 PM	#6
sjmertl07 Registered Member Join Date: Jan 2009 Posts: 8	What is RO/DI??? I have to start my 55 gal saltwater tank over as I lost all my fish today. So I wanted to see what that was - thanks in advance. Serena

10/13/2010, 02:18 PM	#8
Clams55 Registered Member Join Date: Oct 2010 Posts: 72	Reverse Osmosis is a process where water is forced, usually by the pressure in your mains, through a semi-permeable membrane to filter the water you use to top off and do water changes on your tank. It is rated by membrane type, Thin Film Composite (TFC) being the best. RO filters usually include pre-filters, to save your fairly expensive membranes. De-Ionization is a 2nd stage filter that can be placed after the RO membrane for even purer water, usually reserved for reef tanks. The filters are also rated by gallons per day (GPD), and the size you need depends on how big your tank is. I purchase my RODI supplies from Bulk Reef Supply which is an excellent place. Hope this helps!