SIP thread -- (Sub-Irrigated Planter)

natureboygrower

Well-Known Member
This is exactly what I was thinking. I have ZERO knowledge of top dressing, looks like I need to learn. As I understand it I just spread it on the top, and water in, but which to use and how are mysteries to me. It took me a run or two to dial in my synth nutrient feeding and not over or underfeed, and I know how to mix those to effectiveness now.

I've already got a bunch of FFOF and FFHF, so I was planning on using that and feeding as needed once I figure out top dressing. Should be fine?

Indeed! There's a lot here, I've spent some time reading and searching and need to spend more. I'm thinking I'm starting to understand the gaps in my knowledge here though.
After you use up your already bought soil, look into coots water only soil mix. I run a simpler version of that with earthboxes and it's been foolproof for me. I transplant my clones into that, veg for two weeks then flower up to 10. No topdressing required.
Imo, a water only soil combined with sips is the easiest, best way to have great results consistently.
 

meangreengrowinmachine

Well-Known Member
After you use up your already bought soil, look into coots water only soil mix. I run a simpler version of that with earthboxes and it's been foolproof for me. I transplant my clones into that, veg for two weeks then flower up to 10. No topdressing required.
Imo, a water only soil combined with sips is the easiest, best way to have great results consistently.
Build a soil has coots blends already made up! they make AMAZING stuff!! All I use now is BAS products!!
 

Hook Daddy

Well-Known Member
I'm wanting to build a few of these for an attempt, but I'm still confused on how to feed using this. I've only ever ran FFOF soil, then fed liquid synth nutrients as needed, but it seems like topdressing is how you feed a SIP? Any other pointers you might give a first timer? I'd like to try to add some sort of float as a visual aid on the level of water left in the res, but that may not even be needed.

Any help appreciated.
I started with SIPs a couple years ago, and have really been enjoying them so far. I use my diy built 17 gallon totes. I started with about 60% quality container mix from a big box store, not potting mix, container mix. I amended 15% peat, 15% perlite, 5% vermiculite, 5% ewc. I now use the “trench of nutes” on either side of the sip with tomato-tone, as the earth box directions suggest. After a couple weeks I scratch in dry amendments and top water them in, as everyone has already recommended. I currently use espoma tomato-tone, and water in with a low dose CalMag, I mix my own CalMag but it would be 25% strength of a store bought I think. After each grow I just amend the soil with more tomato tone, some lime, a few pinches of langbeinite, I make my own crab and shrimp meal and add a bit of that, some ewc, and done, time to run again. Here’s a link to my journal if anyone would like to read more, I try to keep up here but don’t post often.

 

meangreengrowinmachine

Well-Known Member
I started with SIPs a couple years ago, and have really been enjoying them so far. I use my diy built 17 gallon totes. I started with about 60% quality container mix from a big box store, not potting mix, container mix. I amended 15% peat, 15% perlite, 5% vermiculite, 5% ewc. I now use the “trench of nutes” on either side of the sip with tomato-tone, as the earth box directions suggest. After a couple weeks I scratch in dry amendments and top water them in, as everyone has already recommended. I currently use espoma tomato-tone, and water in with a low dose CalMag, I mix my own CalMag but it would be 25% strength of a store bought I think. After each grow I just amend the soil with more tomato tone, some lime, a few pinches of langbeinite, I make my own crab and shrimp meal and add a bit of that, some ewc, and done, time to run again. Here’s a link to my journal if anyone would like to read more, I try to keep up here but don’t post often.

I made my own but tbh the earthboxes are INCREDIBLE and I will never go back to my home made ones lol
 

Hook Daddy

Well-Known Member
I made my own but tbh the earthboxes are INCREDIBLE and I will never go back to my home made ones lol
I’m sure the earthboxes are great and have never said a bad thing about them. As I said I even use the techniques they suggest for my nute placement. I just need more size as I grow bigger plants, I’ve been thinking of moving to 27 gallon totes vs 17 gallon, but haven’t pulled the trigger yet. It would be interesting to see if it made a difference, I don’t think it would make a huge impact other than having to feed less and holding more water in the res, which would both be nice. I have to leave for days at a time, and my plants now drink over 2 gallons a day, so bigger res capacity is a huge plus to me. I may automate it some day, but mine are all on wheels and movable, each it’s own system with separate scrog nets and all, so automating would make that difficult. It’s always a trade off somewhere. Have a great day, and keep on SIP’n!
 

meangreengrowinmachine

Well-Known Member
I’m sure the earthboxes are great and have never said a bad thing about them. As I said I even use the techniques they suggest for my nute placement. I just need more size as I grow bigger plants, I’ve been thinking of moving to 27 gallon totes vs 17 gallon, but haven’t pulled the trigger yet. It would be interesting to see if it made a difference, I don’t think it would make a huge impact other than having to feed less and holding more water in the res, which would both be nice. I have to leave for days at a time, and my plants now drink over 2 gallons a day, so bigger res capacity is a huge plus to me. I may automate it some day, but mine are all on wheels and movable, each it’s own system with separate scrog nets and all, so automating would make that difficult. It’s always a trade off somewhere. Have a great day, and keep on SIP’n!
Oh sorry I did not mean to imply you were talking bad about them, just my personal experience (-: if you are thinking or going that big of a SIP you might want to look into the grass roots beds. The main drawback to 27 gallon sips is they are HEAVY AF! lol so if that is not an issue grow beds are so great. I am using a 4x4 with the blu mat auto water system now also with build a soils products... insane stuff. Moms are still in earthboxes and thinking about doing some night owl autos in some soon! Happy sipping to you also!
 

laddyd

Well-Known Member
I'm running 4 gallon SIP's with promix and perlite fertilizing with maxigrow then maxibloom. It is a delicate dance of finishing the plants before too much salt buildup. What I have done in the past is top water with straight water a couple of times and vacuum out the run-off. Then back to maxibloom until harvest.
Here's the most recent picture, in a 3x3 two Viparspectra XS 1500 lights set at 75% The soil is Walmart red bale Pro-mix with 30% added perlite. 4 gallon pails. Started in solo cups, transplanted to 1 gallon pots at 2 weeks then transplant to final pot at 3 weeks. Fertilizing with maxigrow and then maxibloom. I try not to give more than 1 tsp per gallon in any feeding, though if a plant looks like it is hungry I will go up to 1.5 tsp per gallon.
Vegged for 27 days then flipped. Picture is at 36 days from sprout, already have height issues, the net is coming out soon. there are 5 plants in there, one is getting moved on Monday.
IMG20240825091851.jpg
 

meangreengrowinmachine

Well-Known Member
I'm running 4 gallon SIP's with promix and perlite fertilizing with maxigrow then maxibloom. It is a delicate dance of finishing the plants before too much salt buildup. What I have done in the past is top water with straight water a couple of times and vacuum out the run-off. Then back to maxibloom until harvest.
Here's the most recent picture, in a 3x3 two Viparspectra XS 1500 lights set at 75% The soil is Walmart red bale Pro-mix with 30% added perlite. 4 gallon pails. Started in solo cups, transplanted to 1 gallon pots at 2 weeks then transplant to final pot at 3 weeks. Fertilizing with maxigrow and then maxibloom. I try not to give more than 1 tsp per gallon in any feeding, though if a plant looks like it is hungry I will go up to 1.5 tsp per gallon.
Vegged for 27 days then flipped. Picture is at 36 days from sprout, already have height issues, the net is coming out soon. there are 5 plants in there, one is getting moved on Monday.
View attachment 5419880
I tried five gallon sips and the plants just out grew them so fast! good luck my friend!
 

natureboygrower

Well-Known Member
Build a soil has coots blends already made up! they make AMAZING stuff!! All I use now is BAS products!!
I buy my nutes from BAS, great company. I make 3cf of soil at a time which after filling 2 earthboxes leaves me a little soil left over. I think the orginal esrthboxes are 12/13 gallons but I use around 10g per EB. I like the slim design of the box itself, my grow area I custom built and is barely 20" deep
I’m sure the earthboxes are great and have never said a bad thing about them. As I said I even use the techniques they suggest for my nute placement. I just need more size as I grow bigger plants, I’ve been thinking of moving to 27 gallon totes vs 17 gallon, but haven’t pulled the trigger yet. It would be interesting to see if it made a difference, I don’t think it would make a huge impact other than having to feed less and holding more water in the res, which would both be nice. I have to leave for days at a time, and my plants now drink over 2 gallons a day, so bigger res capacity is a huge plus to me. I may automate it some day, but mine are all on wheels and movable, each it’s own system with separate scrog nets and all, so automating would make that difficult. It’s always a trade off somewhere. Have a great day, and keep on SIP’n!
I don't weigh my end product but the few times I have, I have been wicked impressed by what I'm pulling with only 200watts and 10g of soil per plant. Do you know what kind of numbers you're getting with 17 gallons? 27 seems a little overkill inside, but just my opinion. We all have different environments and set ups , what may work for some might not work for others
 

Hook Daddy

Well-Known Member
I generally don’t weigh it either, but very near to over a lb a plant depending. Each scrog net is 32”x32” and has its own light at 450w+ though. I have a 4 plant limit so go big. 27 gal is probably overkill, which is part of why I haven’t tried it yet.
 

sgnpuflm

Active Member
I started with 5 gallon and indeed they got huge. I trim the plants back pretty good as I go along. Before I put the net out I will lollipop them and save some cuttings. The idea is to get 4 smaller plants quicker.
I was going to try to squeeze 3 5 gallon SIPs into a 2x4, is this possible or will they just out pace it? I've been able to squeeze 4 3 gallon fabric pots in there before but it takes some canopy and airflow management. I know SIPs won't allow me 4 3 gallons, but I was going back to 5 gallon pots anyway, the 4 3 gallons becomes too tight and too much to manage.
 

laddyd

Well-Known Member
I was going to try to squeeze 3 5 gallon SIPs into a 2x4, is this possible or will they just out pace it? I've been able to squeeze 4 3 gallon fabric pots in there before but it takes some canopy and airflow management. I know SIPs won't allow me 4 3 gallons, but I was going back to 5 gallon pots anyway, the 4 3 gallons becomes too tight and too much to manage.
One thing for sure you won't have any trouble filling the tent with plant matter. 3 is pushing it, depends on the plants, vegging period, auto or photo.
 

Kayaganja

Well-Known Member
Some Sipers says top watering first, no water in bottom res, in order to build root growth in the entire pot so that it can absorb nutrients well. Once healthy roots in most of the pot fill the bottom res. Dont have a horse in this race so do what you like and makes sense to you :)
Like you say boss it isn’t a race , I was planting some seeds and having a smoke , wrote the names of the strains, did my thing went to bed , wake up to find the names one is an auto , in a 20g sip Lol
 

weedstoner420

Well-Known Member
I was thinking 16 clones in 2g pots (sips) veggie for a week , see what happens, right now am working on the pot design, want to reuse the old pots I have
Any reason for going with such small containers? If you're doing SOG style you could probably use bigger containers like Earthbox size or bigger, and do 3-4 plants per box, and it would be a lot less work
 

Kayaganja

Well-Known Member
Any reason for going with such small containers? If you're doing SOG style you could probably use bigger containers like Earthbox size or bigger, and do 3-4 plants per box, and it would be a lot less work
An earthbox costs me like 110$us each . So I got only one , why I have the 2,5 and 10g pots just sitting here , and 30 clones, of which I want to choose goods to grow shortening veggie time and hope for same yield.
 

Tim Fox

Well-Known Member
An earthbox costs me like 110$us each . So I got only one , why I have the 2,5 and 10g pots just sitting here , and 30 clones, of which I want to choose goods to grow shortening veggie time and hope for same yield.
Dang I'm sorry the earthbox costs so much, my wife found three of them sitting by the road with a free sign after someone had a garage sale that day, she brought them home and asked me if I wanted these , hahah I was beyond happy, now I have four of them , and three are grow boxes which I prefer more due to the front opening for the reservoir
 

Kayaganja

Well-Known Member
Dang I'm sorry the earthbox costs so much, my wife found three of them sitting by the road with a free sign after someone had a garage sale that day, she brought them home and asked me if I wanted these , hahah I was beyond happy, now I have four of them , and three are grow boxes which I prefer more due to the front opening for the reservoir
No worries it just gives me chances, to think so I got me self some Rubber Maid Brute two of them and made two of these ,popping seeds as we speak . The sips are ready soil has been cooking in my little soil factory for some time now . Am making my own Bokashi , will try that grokashi , if I get everything for it or just ferment different gains and veggies that we know have the plant needs, got my own worms so blackgold is in the house.
 

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