Water replacement

P

Prez

AC Members
Feb 2, 2005
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Okay, I have been reading a bunch of topics on this and would like some more opinions taliored to my specifics.

I currently have a R/O DI system with the following descriptive specs::

1st stage: high capacity, 5 micron sediment filter, to remove sediment, rust, sand, (replace every 12 months)

2nd stage: high capacity carbon filter, coconut shell carbon block filter removes chlorine, taste & odor (replace every 12 months)

3rd stage: high capacity carbon filter, coconut shell carbon block filter further removing chlorine to ensure 100% removal of chlorine (replace every 12 months)

4th stage: TFC-100/TFM-100 Premium membrane we have done extensive testing among different brands of membrane, and we recently have switched to a higher rejection membrane GE Desal membrane, (even better than Filmtec membrane), it removes 97% to 98% of all chemical, dissolved solids in tap water. (replace every 2-3 years) Look at data below.

5th stage: DI filter (de-ionized, de-mineralize filter), Nuclear grade, color changing DI filter with refillable clear housing. The DI filter removes remaining of dissolved solids after RO system.

6th stage: DI filter (de-ionized, de-mineralize filter), Nuclear grade, color changing DI filter with refillable clear housing. The DI filter removes remaining of dissolved solids after RO system. A ball valve is included for dispensing DI water into open containers or to open tank. GOOD for reef, aquarium, hydroponics applications.
Click to expand...


My question is:

What minerals are good for the tank and fish?


Just a general answer, I know specific fish/inverts would need special attention but I'm looking for what most all fish need. I am concerned that the unit is removing too much of the good stuff and I may want to either

a) substitute some of the R/O DI replacement water with treated tap
b) remove some of the DI resin so some water can channel through without being treated



Thankies!!!!
:dance:
 
To add......

Maybe I should have added what our tap water is like. It has some ammonia in it, pH is neutral (usually always around 7.0), 10ppm nitrAtes and it is VERY hard.

A pic:::


RD102.jpg

Thanks again!
 
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Prez said:
To add......

Maybe I should have added what our tap water is like. It has some ammonia in it, pH is neutral (usually always around 7.0), 10ppm nitrAtes and it is VERY hard.
Click to expand...
Do you know the KH and GH of the water?
Frankly, unless your KH and GH are really out of wack, I don't see anything wrong with the readings you've quoted. The ammonia is chloramine, Prime or Amquel+ look after that. As for the nitrates, plants would love that to pieces.

My tap water is
pH 7.6-7.8
Ammonia: 1.5
Nitrates 7.0
Iron 1.0
KH 2.0
GH 5.0

Not much different from yours, except you didn't post your KH and GH. I suspect it won't be that high since your pH is neutral.

Unless you intend on breeding fish like discus, you really don't need to use an R/O unit for freshwater fishes.

My 2 cents
Roan
 
Another product by Kent is called RoRight from what I have read many people use it with great results. Your best bet is to get with you lfs or the place you will be buying your fish from and find out what they use and what there water perameters are. Most lfs use RO systems and can make good sugestions as to what to do.
Good luck
 
My GH was between 10-12 drops!!! KH was around 8-9. The local water is VERY hard and I used some water softner pillows for a bit prior to getting the unit. The R/O was only $100. so I figured the worse would be we'd use it for drinking water! LOL. I thought most of the fish I have would perfer softer water too, I just didn't expect it to be so pure----well, maybe I did just because of its description but I thought it would be better that using the tap and chemicals all the time.

We have recently aquired 3 Chocolate Gouramis and this should come in handy for them. It's been 3 days since we got them and they look cute now that their color is back and they have settled in. We placed them in our 6g Eclipse and they have it all to themselves, except for the 2 snails.

Here's some pics:

Chocolate5.jpg



Chocolate6.jpg



ChocolateTANK.jpg



Snail1.jpg




**the food holder has a couple of fake plant leaves wedged in it and placed under the flowing water. This helps to break the water current a lot, in case anyone was wondering ...hehehehehehehehehe... =)

Thank you for all of your suggestions!
 
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