ImmaBeatThatAzz
Active Member
I am using an active Ebb and Flow system with 5 plants and I'm noticing some of my leaves are burnt/turning slightly brown on the ends. From Window's guide and what I've read here, I was thinking the issue is either high PH, too much nutrient, or both.
I am using Ionnic Grow and it says use 5mls per liter or 4 tsp a gallon. I think my issue is since I bought this system a few yrs ago, I do not remember the actually amount of water it holds, so I may have over-nuted. For some reason I keep reviewing my notes and thought my tank held 50 gallons. So I ended up almost putting 2 cups in when I calcuted my 4 tsps per gallon mess.
I'm going on the 4th week of veg and tested the PH with 2 seperate kits; the older kit gave me 5.0 and the newer kit gave me 6.4. Yes, I am currently using PH drops and I do think it's time to buy a digital tester. Ionic Grow says the PH should be between 5.8 - 6.2, I have papers that say 5.5 for veg, and so on.
There is an excess built up in the tub, which I'm thinking is salt. I figure this may be a good time to flush the system and start fresh. My questions are:
Should I just flush the rockwool wiht fresh water and keep what is in the tub, just balancing the PH?
Should I dump the tub, using a pitcher and measure how much water it holds, then add the nutes and balance the PH?
What should the PH really be right now?
I have a MH/HPS light that is more than 4 ft above the plants, so heat is not an issue. There is a cooling fan fo rthe light as well as an additional fan on the plants themselves. The temp of the closets stays in the 80s and never goes above 89 degrees. This is only my 2nd attempt, but I already see the mistakes I did before and would like to correct this before it's too late.
Also, I'm running my light on an 18/6 with 5 floods, so I'm thinking it's not from overwatering either. I added some tap water the other day before I checked the PH and I notice there are less burnt leaves, which also makes me think this is linked to the over-nuting. Any help/opinions are greatly appreciated.
I am using Ionnic Grow and it says use 5mls per liter or 4 tsp a gallon. I think my issue is since I bought this system a few yrs ago, I do not remember the actually amount of water it holds, so I may have over-nuted. For some reason I keep reviewing my notes and thought my tank held 50 gallons. So I ended up almost putting 2 cups in when I calcuted my 4 tsps per gallon mess.
I'm going on the 4th week of veg and tested the PH with 2 seperate kits; the older kit gave me 5.0 and the newer kit gave me 6.4. Yes, I am currently using PH drops and I do think it's time to buy a digital tester. Ionic Grow says the PH should be between 5.8 - 6.2, I have papers that say 5.5 for veg, and so on.
There is an excess built up in the tub, which I'm thinking is salt. I figure this may be a good time to flush the system and start fresh. My questions are:
Should I just flush the rockwool wiht fresh water and keep what is in the tub, just balancing the PH?
Should I dump the tub, using a pitcher and measure how much water it holds, then add the nutes and balance the PH?
What should the PH really be right now?
I have a MH/HPS light that is more than 4 ft above the plants, so heat is not an issue. There is a cooling fan fo rthe light as well as an additional fan on the plants themselves. The temp of the closets stays in the 80s and never goes above 89 degrees. This is only my 2nd attempt, but I already see the mistakes I did before and would like to correct this before it's too late.
Also, I'm running my light on an 18/6 with 5 floods, so I'm thinking it's not from overwatering either. I added some tap water the other day before I checked the PH and I notice there are less burnt leaves, which also makes me think this is linked to the over-nuting. Any help/opinions are greatly appreciated.