PK1
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i was told sulfuric acid actually has no other additives like some other brands do. Most come with N nitrogen or K potassium.So sulfuric acid for Ph down. Only concerns on that is I would probably go with food grade. When sold for batteries I kinda feeling like it may have other additives that you don't want... but I could be wrong.
So thats tap water... sounds like it has a decent alkalinity so your getting a more stable ph.i was told sulfuric acid actually has no other additives like some other brands do. Most come with N nitrogen or K potassium.
The MC nutrients drop my tap water ph to 6.5 and with 8ml of mixed solution i get my ph to 5.8
I've noticed that it holds the ph at the lower rate for a longer time. I don't ph daily, but i do check the ph and ppm reader to make sure that the water environments are correct.
Its all depends on the brand. Sulfuric and phosphoric acid are IMO the 2 top choices for hydro. Nitric is to weak and citric reacts with bicarbonate to be absolutely useless for hydro.i was told sulfuric acid actually has no other additives like some other brands do. Most come with N nitrogen or K potassium.
The MC nutrients drop my tap water ph to 6.5 and with 8ml of mixed solution i get my ph to 5.8
I've noticed that it holds the ph at the lower rate for a longer time. I don't ph daily, but i do check the ph and ppm reader to make sure that the water environments are correct.
I've never used that stuff and really have no clue how it goes. I got the acid idea from a another grower from a diff site. It helped tremendously keeping the ph more stable.Its all depends on the brand. Sulfuric and phosphoric acid are IMO the 2 top choices for hydro. Nitric is to weak and citric reacts with bicarbonate to be absolutely useless for hydro.
Battery acid is sulfuric acid.I've never used that stuff and really have no clue how it goes. I got the acid idea from a another grower from a diff site. It helped tremendously keeping the ph more stable.
i had to go digging to find the formula but here it is.Welcome again. Battery acid formula to lower pH? Please elaborate. Looking good.
Yes but gives you sulfur.i had to go digging to find the formula but here it is.
7.5ml of acid into 92.5 litter of water gives you a clean ph down with no additional nitrogen or potassium
7.5/92.5 = 100/x
7.5x=9250
9250/7.5=1233.33333333
is that a bad thing?sulfur
Nope not at all... all the different acids provide some form of nutrients.is that a bad thing?
I run mine at 72-73f I found to be the most optimal for growth. But you must run sterile or live at thise temps because any bacteria will have explosive reproduction there... good and bad.@Aquaman except chiller any other idea to keep the rez water on the lower temps? i'm using outside cold air to the outside of the toets but it wont bring it lower than 21.5c/70f
i had a 4" dryer vent duct that was going right throw the lid and cooling the rez water to 18c, but i think the volume of air that was going in was making the roots stop growing. I've had it off for couple days and the temps during the day get to 22c/73f and as low as 21c/69fI run mine at 72-73f I found to be the most optimal for growth. But you must run sterile or live at thise temps because any bacteria will have explosive reproduction there... good and bad.
The long touted myth that res temps above 68f are bad is just plain wrong. Pythium has many strains and many thrive at low temos also. The key is to have good control of the bacteria by either killing them all with a sterile system or providing beneficial ones that prevent and/or kill the undersized... if live you want bacillus amyloliquefaciens and I would suggest southern ag fungicide or hydrogaurd for that with the addition of enzymes you will have a very healthy and robust root system free from worry.
In regards to cooling a simple fan blowing on the water will cause evaporative cooling and will drop a few degrees. Can diy this or I have seen some for sale. Just need wind over the water and as it evaporates it cools the water.
Can also just rotate frozen water bottles. 500ml to 2 litre depending on how much cooling and how long they last.
Yeah you dont want it blowing on the roots... it will air prune them and make them susceptibleto infections.. probably only an option if you had a seperate res.i had a 4" dryer vent duct that was going right throw the lid and cooling the rez water to 18c, but i think the volume of air that was going in was making the roots stop growing. I've had it off for couple days and the temps during the day get to 22c/73f and as low as 21c/69f
now, that you mention air hitting the water, made me wonder if the root grow has anything to do with the air. here is how it used to look before i moved it to the back of the rez which is on the outside.
View attachment 1072169 View attachment 1072170
hydroguard has to do with enzymes? so essentially add more enzymes for higher temps?I run mine at 72-73f I found to be the most optimal for growth. But you must run sterile or live at thise temps because any bacteria will have explosive reproduction there... good and bad.
The long touted myth that res temps above 68f are bad is just plain wrong. Pythium has many strains and many thrive at low temos also. The key is to have good control of the bacteria by either killing them all with a sterile system or providing beneficial ones that prevent and/or kill the undesired... if live you want bacillus amyloliquefaciens and I would suggest southern ag fungicide or hydrogaurd for that with the addition of enzymes you will have a very healthy and robust root system free from worry.
In regards to cooling a simple fan blowing on the water will cause evaporative cooling and will drop a few degrees. Can diy this or I have seen some for sale. Just need wind over the water and as it evaporates it cools the water.
Can also just rotate frozen water bottles. 500ml to 2 litre depending on how much cooling and how long they last.
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