ALK Buffer
Tropical Fish

Tropical Fish Keeping - Aquarium fish care and resources » Freshwater Fish and Aquariums » Beginner Freshwater Aquarium » ALK Buffer

ALK Buffer

This is a discussion on ALK Buffer within the Beginner Freshwater Aquarium forums, part of the Freshwater Fish and Aquariums category; --> I use RO/DI water. The problem is how to buffer. From my SW experience I know that the main buffering agents are soda ash ...

Check out these freshwater fish profiles
Discus
Discus
Harlequin Rasbora
Harlequin Rasbora
Reply
Old 01-23-2012, 08:02 PM   #1
 
FranklinS's Avatar
 
ALK Buffer

I use RO/DI water. The problem is how to buffer. From my SW experience I know that the main buffering agents are soda ash and sodium bicarbonate. Soda ash raises PH which I don't want and sodium bicarbonate adds salt. Which to use for FW tanks? I am getting a Cardinal Tetra tank ready and need low GH.
FranklinS is offline   Reply With Quote
Old 01-23-2012, 10:35 PM   #2
 
Quantum's Avatar
 
no real need to buffer, cardinals come from water with pH as low as 3.0 or 4.0, just let it drop, though you may need to increase GH a little if live plants are to be added
Quantum is offline   Reply With Quote
Old 01-24-2012, 06:40 AM   #3
 
onefish2fish's Avatar
 
i believe if your using RO/DI water for freshwater tanks its the lack of minerals that comes of concern as the water is to pure. i remember seeing a product called "RO Right" or something similiar which is supposed to replace lost minerals in your RO/DI water but i have no experience using it. it wouldnt hurt to look into that though.

is there an issue with your tap and a dechlorinator? or i should say, why use only ro?
onefish2fish is offline   Reply With Quote
Old 01-24-2012, 02:29 PM   #4
 
Byron's Avatar
 
Yes, unless there is something in the tap water that you do not want in the tank, the cheapest and easiest solution is to use some tap water with the RO. However, as Quantum pointed out, cardinals do not need any of this, so be careful.

I never buffer pH, my tanks are at 5 or perhaps less, no test kit I can find goes below 5. I do however have to add some GH due to the plants, as Quantum mentioned. There is insufficient calcium and magnesium in prepared fertilizers, since they assume tap water will supply most of these. My tap water is near zero GH and KH.

On a related item, I just posted this photo in another thread so thought I'd stick it in here too, as an example of a very authentic cardinal tetra biotope; more leaves on the substrate is about all I would add. Dim light, essential for cardinals as they have a "light phobia." The second photo is a specific biotope of the Rio Huallaga in Peru.

Byron.
Attached Images
File Type: jpg Amazon cardinal habitat.jpg (38.9 KB, 21 views)
File Type: jpg Rio Huallaga aquascape.jpg (74.1 KB, 21 views)

Last edited by Byron; 01-24-2012 at 02:40 PM..
Byron is offline   Reply With Quote
Old 01-24-2012, 06:24 PM   #5
 
damn those are nice! what are those floating plants?
Maxillius is offline   Reply With Quote
Old 01-24-2012, 06:47 PM   #6
 
Byron's Avatar
 
Quote:
Originally Posted by Maxillius View Post
damn those are nice! what are those floating plants?
Amazon Frogbit in the first tank, and I think probably the same in the second. These are tanks where Water Sprite would also be absolutely ideal.
Byron is offline   Reply With Quote
Old 01-24-2012, 07:49 PM   #7
 
Quote:
Originally Posted by Byron View Post
Amazon Frogbit in the first tank, and I think probably the same in the second. These are tanks where Water Sprite would also be absolutely ideal.
hmm wish i could fine some of that around here hehe
Maxillius is offline   Reply With Quote
Old 01-24-2012, 07:58 PM   #8
 
Byron's Avatar
 
Quote:
Originally Posted by Maxillius View Post
hmm wish i could fine some of that around here hehe
You are in Canada, as I am, so when the weather warms if you still want some Water Sprite, I can mail some and will only charge you postage. I might be able to include Frogbit too; I do have it, but it goes through periods of decline down to a couple of leaves. Right now it is growing again.

In cold weather the plants might well be killed after 3-4 days. I sent some plants to a member in Ontario early last fall that arrived OK, took 4 days I believe. Remind me in the Spring, as I will otherwise forget.

Byron.
Byron is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Buffer and Test kit ConorM Beginner Freshwater Aquarium 1 10-09-2011 07:08 PM
pH Buffer Between 7.0 and 8.0 iheartmypitbull Beginner Freshwater Aquarium 11 08-30-2010 02:52 PM
Using Buffer SinCrisis Beginner Freshwater Aquarium 7 12-01-2008 11:51 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search



All times are GMT -5. The time now is 08:05 AM.