The Grow Awards 2026 🏆 
Weird leave tips
ILikeTomatoesstarted grow question 6y ago
I'm growing it on coco and perlite. Im not using any nutrients for now, just water. I think that may be a signal that its time or its close to start feeding it? Im on day 9.
Solved
Feeding. Other
likes
Grey_Wolfanswered grow question 6y ago
@ILikeTomatoes Yes I would start to feed it some Calmag if you have it .
Simply because coco grows are reknown for being deficient in both calcium and magbesium plus calmag products usually have a small amount of nitrogen in them as well which will help keep your plant happy Try to keep feeds PH at around 5.9-6 if possible as that seems to be the sweet spot
likes
Complain
Similar Grow Questions
Solved
Zoomer
How do I lower pH using pH Down?My soil pH levels are high - just over 7. My tap water is also high - over 7. I have a bottle of pH Down but I've never used it. Do I just add a bit to the tap water and water them? Or should I wait till the next time I'm adding nutrients? How much should I add? Thanks!Week 3
Feeding. Other
5y ago
2
1
Solved
Bristolguyty
Starting week 10 of grow and week 4 of Flowering Easy Bud. - PK adviceStarting week 10 of grow and week 4 of Flowering Easy Bud.
I want to start adding PK 13/14 to my feed, is this the correct week and should I keep to dose on the bottle or lower as its a Autoflower?Week 10
Feeding. Other
5y ago
1
2
Solved
Spliffing_Around
Plant does not drink nutes500ppm runoffWhy the smallest plant does not drink nutes ?
The one in the video that I mention is having 500 ppm run off . What shall I do with the nutrition in order for the growth to explode like the other plants? What else I can add in this case and do I need more light for this amount?Week 3
Feeding. Other
3y ago
1
3
Solved
Cremo
Can I go back to nutes after flushing?I have a 70L res with 3 plants in it. 2 of them are the same, the third is a strain with 10-20 days shorter flowering time. I'll have to flush her before the others are ready. Can I flush all 3 at once for a week, then chop down the one and then add nuts to the other for a week?Feeding. Other
6y ago
4
4
Solved
LittleManSmokingWeed
How to know the PH without PH testerHey guys ! i juste whant to know if you can grow a full autoflower from start to finish without testing the PH in you water :)
I have no way to mesure my PH, and i dont use any liquide nutriments, or PH solutions. I have BioBizz Soil Light Mix. Is it a probleme not now the PH ?Feeding. Other
6y ago
3
3
Solved
mbatista
EC and PH of Runoff is Higher than SolutionI'm putting a full nutrients indication in all watering since beginning of flowering. And I was suspecting it was too much, so I decided to measure the runoff of the plant. And the measuremet was:
PH - in: 5.88 -> out: 6.76
EC - in: 1.15 -> out: 1.27
And now? what this mean?Week 9
Feeding. Other
5y ago
4
4
Solved
Adamek
BioTabs usersHave some questions to BioTabs users.When should I add the second BioTabs nutrients ? In the instruction the say it should be in the 5th week. I need to count the weeks from the first nutrient apply or 1 day of plant ? And one more.what’s the best high of the LED lamp ?25/30cm?Week 3
Feeding. Other
6y ago
3
3
Solved
FrankieBones
Watering Volume and FrequencyHi GD peeps. How much should I be watering these 10L fabric pots? So far I have bsen doing 500ml with no run-off, and just did 1.5L with little bit of runoff. Should I soak the pot on every feed with about 1.8 to 2L, and leave until moist-dry before next feed?5y ago
2
1
Solved
zkittlezjunior
Water problemHow much water do i have to use for my 7lt pot?Feeding. Other
5y ago
1
1
Solved
buddhi_coop
NutrientsWould you all use these together or am I supposed to choose one or the other? Week 4 of floweringBuds. Other
Feeding. Deficiences
Feeding. Other
5y ago
2
2
Solved
VeggieTales
Watering in Super CoCoHey there fellow growers! So I’ve been trying to figure out the best watering schedule and volume 🧐I’ve been told to always water with runoff, go by weight, top inch dry, etc.
I guess my main question is runoff necessary when watering in Super CoCo?
All advice appreciated!🌱Other. Other
Feeding. Schedule
Feeding. Other
5y ago
1
1
Solved
BongRip
2181PPM!! What to do!?2181ppm! My run off ppm got very high at the water at the end of this week. I boosted them with 7ml/gal of earthjuice big blooming guano + 2.5ml/gal earthjuice meta-k. The initial water ppm was 176ppm. Should I flush it off immediately with plain ph water? Please help guys!Week 6
Feeding. Other
5y ago
2
1
Solved
420Highlifecouple
Soda water feedingI occasionally give my girls soda water,does it actually provide more Oxygen to the roots?Other. General questions
Setup. Strain - Autoflowering
Feeding. Other
4y ago
2
5