PH down - which brand?

[zar]

Hi all,

just wondering what people use for adjusting ph. What is a good and cheap option?

[ILLUSN]

i use HCl that i get from work, i've also used acid buffer by seachem with good results.

phosphoric acid is what most buffers use.

[BigBlue]

Acid buffer from Seachem all the way

[scott bowler]

i use the seachem too

[actinicblue]

co2 injection is keeping the ph in my 125 gal down to 6.2-6.5 :lol: not to mention the healthier plants too. It used to be around 7.5 to high 8's!
fishes were not happy and plants were dying :x :D

[actinicblue]

co2 injection is keeping the ph in my 125 gal down to 6.2-6.5 :lol: not to mention the healthier plants too. It used to be around 7.5 to high 8's!
fishes were not happy and plants were dying :x :D

[vyberman]

I dont use the ph down type stuff. I use waterlife's ph 6.5 buffer.

From what i can understand, ph down additives are acids, the more you add the lower it goes (to a point)
Whereas an actual buffer holds it stable at the stated PH.
It dosent matter if your waters PH is higher or lower than the target PH. A buffer will raise or lower the PH once there is enough of it in there.

I may be wrong about the above statement, if i am then i am open and willing to be corrected :)

My planted tanks display the same PH first thing in the morning as they do at night, regardless of the co2/oxygen prodution of the plants.

[glamgirl]

I also use the seachem acid buffer

[AHC]

Ive used Discus Buffer which was phosphate based but only used this is a bare tank. Then i threw some plants in so had to change to a non phosphate buffer. This is where the acid buffer comes in like a charm if you want to use buffers. I went straight to hydrochlric acid though. Its cheap from bunnings.