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Search: Posts Made By: Mathmattx
Forum: Hydroponic Grow Lights 03-13-2009, 02:53 PM
Replies: 3
Views: 4,685
Posted By Mathmattx
Comprehensive Pump Guide

I have posted a comprehensive pump guide fro Hydro, Aero and Drip systems. It will help you figure out how big of a pump you need! Its on a blog at hydroponica.blogspot.com. Just some simple math,...
Forum: Hydroponic Nutrients and Mediums 03-12-2009, 07:51 PM
Replies: 8
Views: 7,653
Posted By Mathmattx
Great Strategies

Great Strategies! Ideally nutrient should be kept between 68-75. Obviously it CAN be kept a little cooler and much warmer than this. You may want to introduce a cooling loop into your system...I took...
Forum: Hydroponic Nutrients and Mediums 03-12-2009, 01:05 PM
Replies: 8
Views: 7,653
Posted By Mathmattx
Potential Hydrogen Testing

Science and Medicine have used litmus and chem pH tests for decades with excellent and reliable results. Just takes some patience and training (both of which it seems you have), so that is excellent....
Forum: Hydroponic Nutrients and Mediums 03-12-2009, 12:58 PM
Replies: 4
Views: 3,480
Posted By Mathmattx
Coco Loco

Coco fiber (or fibre if your imperial :) ) Is a great Hydroponic medium. But, like almost everything, a few caveats to bear in mind. First itís organic, which I mean as the two primary functions of...
Forum: Hydroponic Nutrients and Mediums 03-12-2009, 04:11 AM
Replies: 21
Views: 14,026
Posted By Mathmattx
Ok before we get into a very long post can you...

Ok before we get into a very long post can you get a very accurate lab grade (gram) scale, and can you accuratly measure chemical concentrations in mL or uL (preferably microliters) via AFM or ECM....
Forum: Hydroponic Nutrients and Mediums 03-12-2009, 04:03 AM
Replies: 8
Views: 7,653
Posted By Mathmattx
Measurements

Do you have a pH and/or tds meters? Those will help optimize plant nutrition and help avoid any losses that could otherwise be avoided. If you don't have them and are looking I have some great and...
Forum: Hydroponic Nutrients and Mediums 03-12-2009, 03:21 AM
Replies: 8
Views: 7,653
Posted By Mathmattx
It not over feet that's the issue

I am assuming this question stems from your other post in which you cite that you accidentialy doubled a concentration. The plant will only draw from available nutrients what it needs so,...
Forum: Hydroponic Nutrients and Mediums 03-11-2009, 06:40 PM
Replies: 21
Views: 14,026
Posted By Mathmattx
Recipies

Nevertheless I will post 2 "chemical recipies" tonight when I get home, along with some needed equipment and directions.
Forum: Hydroponic Nutrients and Mediums 03-11-2009, 06:38 PM
Replies: 21
Views: 14,026
Posted By Mathmattx
Out of my league

chemistry is eAsy enough...your problem is not going to be the chemistry, but the reliAble evaluation of what you have. Unfortunatly, again you can't accuratly gauge concentrations, measure salts or...
Forum: Hydroponic Nutrients and Mediums 03-11-2009, 05:46 PM
Replies: 12
Views: 9,230
Posted By Mathmattx
Pennies

If your pinching pennies that tight probably should find a new hobby:). The air pump is probably costing a dollar or two a month to run. There are several sites, or some simple math to use to...
Forum: Hydroponics 03-11-2009, 03:07 AM
Replies: 5
Views: 5,914
Posted By Mathmattx
Jury Out

I think the jury is still "way out" on LED's, not sure they can reproduce the corrrect spectrums, enough lumens or the right temperature. My opinion...not worth the money yet.
Forum: Hydroponic Nutrients and Mediums 03-11-2009, 03:00 AM
Replies: 12
Views: 9,230
Posted By Mathmattx
Aeration

Unless your changing your nutrient every week or so, it does not hurt to oxegenate it. Helps in uptake and more importantly keeps nutrient from stagnating. Keeping the nutrient well oxygenated also...
Forum: Hydroponic Nutrients and Mediums 03-11-2009, 02:56 AM
Replies: 21
Views: 14,026
Posted By Mathmattx
Um..probably not

I dont think so! The problem is mainly with the solubility. The solubility of commercial fetilizer varies greatly. But in theory...Besides the three major nutrients you've got in reg. fertilizer,...
Forum: Hydroponics 03-11-2009, 02:45 AM
Replies: 2
Views: 3,030
Posted By Mathmattx
Grodan

If you go direct to grodans www site they have a cool pamphlet with ILLUSTRATIONS :) you can print out on how to use Rockwool.
Forum: Hydroponic Nutrients and Mediums 03-11-2009, 02:42 AM
Replies: 1
Views: 3,848
Posted By Mathmattx
ok?

Plant wont absorb more nutrients than they need, so from a concentration standpoint you should be ok (with the size of your resovoir). Keep an eye on the pH and watch for root stress. if you love...
Forum: Hydroponic Grow Lights 03-11-2009, 02:38 AM
Replies: 3
Views: 4,685
Posted By Mathmattx
pump

I would consider the Little Giant 53001. Its a 205 gph (at less than 3-feet of head) and its sealed and rated for medical/lab use. Its quiet, efficient and very reliable. Will set you back about...
Forum: Hydroponic Grow Lights 03-11-2009, 02:35 AM
Replies: 2
Views: 4,745
Posted By Mathmattx
Cheap Lights

Check out the discussion on Hydroponica.blogspot.com GE makes a 6500k, 100w (26-actual watt) CFL. 4 of these is (actually better) than the commercial 105w CFL lights (you will get better effieciency...
Forum: Hydroponics 03-11-2009, 02:26 AM
Replies: 3
Views: 2,718
Posted By Mathmattx
Smile All 3 needed

You have to mix all 3, and the concentrations change at each stage of plant growth. Make sure your water pH is in the right range - 6.0 is great all around for veges -(for a quick discussion see...
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