bombbudpuffa
Sweet Cheeba Chiefa
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I think you have a ph problem, nothing to do with the nutes. Rockwool can screw with your ph. You should put those in your soil or hydro system now though.
My second grow, please give advice
- Thread starter TruTHC
- Start date
thanks for all the replies guys. well, i just got my ph meter and my tap water is about 9. im changing the water and putting lots of lemon juice aiming at 5.8-6.2. and i also put it in hydro system, i gave it some neuts. one of my good looking plants grew 2 more sets of leaf overnight but im seeing yellow tiny spots, the temp is about 92 so i moved the light up higher, o yea im using mh right now. the humidity is very low at 20-40%. so is the tiny yellow spot from too much neut or light burning it? its as small as a grin of salt. ill have some pic soon thanks again everyone
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bejohnst
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lots of spots? or just one or two? Could be anything, but if the plant is growing dont worry to much about it. Try and get that temp down to the low to mid 80s. Once you stabilize your ph you'll see rocket growth. What nutes are you using and what strength? Do you have a ppm meter as well as a PH, not necessary, just helps
AlienBait
Enjoying the Hooka
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TruTHC said:
I strongly recommend against using lemon juice or vinegar, or any other food product in a hydro system. It will only lower the PH for about 12-24 hours and you will get a reservoir full of white slime. For hydro, you really should get PH-down or PH-up made for hydroponic systems.
Peace.
ok here are some pics, my tap water is ph 9.8. i brought some ph decrease and increase at petsmart. will these b ok? the 3rd pic dont have the small tiny yellow dots but the leaf has one big yellow spot and the 1st and 2nd pic show the yellow spots. the white stuff u see on the 2nd pic is perlite, i cleaned it off after the pic. thanks again guys, good info.
AlienBait
Enjoying the Hooka
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TruTHC said:
Just had this conversation on another thread. I can't find any one who has used the fishtank PH decreaser before, so I don't know how well it will work. You really should get some PH up/down made for hydro systems until you get your technique down. Then you can experiment with other products.
But, since you already bought it and I assume you started using it, I will be watching this thread to see how well it works. Please keep us updated.
Peace.
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bejohnst
Guest
were you able to get the PH down with the aquarium stuff? I'm not sure either as to what effect it will have in a hydro envoirnment, I assume it can't be that bad since fish can live with the crap in the water. What brand of nutrient is that? It seems like it would be very good for vegging due to the high Nitrogen concentration. Also what type of hydroponic system do you have there? Can you give us a bunch more information about your ENTIRE setup? Oh and don't worry about that yellow spot. Its just one of the starter leaves, doesn't do anything but fall off now.
AlienBait
Enjoying the Hooka
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TruTHC said:
The plants die.
.
But, seriously, check the PH twice a day to make sure it is stable and watch the reservoir for a build up of scum. And watch those plants closely for any sign of stress.
At this point, you should be using 1/8 to 1/4 strength nutes.
Sending positive vibes your way!
Peace.
I'm not sure what kind of hydro set-up i have but im just using a 10gal tote. im using a 50 gal dual outlet pump and i'm using 2 flexible aeration wand. painted tote black and i have 6 holes i also covered the top with maylar (dunno if that make any difference. I'm using styro cup a 1.5inch rockwool. I use mostly perlite and just some gravle. the brand for my neut is EXPERT i got it at walmart. the ph is at 5.4 the water temp is 65degree the box temp is around 75-80 degrees and rh at 21%, thats this morning. i havn't tried the ph decrease yet. i will try it out when i get home and i will note how long the ph stay for until it start changing. The pH decrease says it safe for plants and fish, but again thats aquarium plant not mj. i will update on the rh and temp etc. tonite. im sorry i dont know what other info i should give to help my grow. please ask me and i will get the answer. thanks.
its like 55ish degree in my attic, so how bad is it to leave the lamp on 24/0 for maybe a week or 2, maybe less so my babies stay warm up there? then change back to 18/6 when its gets warmer. they havn't been under mh lamp for 24hr yet. its been under floro 24hr for about 2weeks. i have a heating pad, the water temp is about 65. im gonna change the setting to get the water about 72degrees.
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bejohnst
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it looks like you have a dwc setup of some sorts. Not sure but hey what ever works. The water temp seems fine no need to warm it up. Go ahead and stick them under 24/0 won't hurt anything. I assume you have a HID lamp of some sorts, whats the wattage? Make sure you don't burn them is all. I've never heard anything about the nutes you're using, maybe somebody else will recognize the brand.
i'm using 400watt MH right now. i havn't heard of that brand neut either but since the N is 30 i thought i'd try it. i dont have many verities here. ok, be back with more updates in a lil bit. thanks for that info bejonhst.
Here is a little update. the aquarium pH increase drop by about 2 in like 3 hours. The pH in the spare/test bucket is at 5.5. i will check it again in about 9hours to see if it make any changes. My current pH is adjusted to 6.3 from 5.5. and water temp is 70degree, the rH is 20(is this too low? should i invest in a small humidifier? if i put a bucket of water in front of my intake will that increase the humidity?) i have new pic of plants. looking yellower than yesterday. The 1st and the 2nd pic are the same plants.
Kindbud
Grower
the baby on the top pic dont look to good
yea my 3 babies on the top is gone, im germing like 8 more, i think im gonna have to change all the babies. it seem really moist in the bucket and my cups feels wet on the outside. but the perlite on the top surface of my styro cup look dry. my rockwool is at the bottom of the cup i think it gets wet with the moisture. im woundering if i need to wet the top surface when it look dry? thanks guys
i checked the aquarium pH 23 hours later and it went from adjusted 6.3 to 8.6 i used some increase and decrease. i took the measurement after the pH sit in the water for 30 min. Water temp. was from 70 to 80.5. hope this info help a lil bit. i will do more testing to determine accuracy
hmmm i adjusted the pH to 6.3 last nite and i check it again this morning 8 hours later and it went back up to 81. the temp raise from 85 to 92 in room and water went from 80 to 71. i moved the light up somemore. my plants hasnt recover from the transplant yet, well i dont see any new growth. i only have 2 ok looking ones, im going on vacation for 6 days. so i have a feeling i gotta start over again. my water is so cloudy it look so ugly from some lime and vinegar (yuck). i'm waiting for the dry powder pH adjust to get here then im gonna change the water.
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