We are Transferring our Current News Blog to our website….


We are Transferring our Current News Blog to our website….

Just so you know, as of tonight, we will no longer be posting on this blog and will be now posting on the new built in blog that is on our website, you will find this under the “news” section/tab on our home page www.hg-hydroponics.co.uk or you can simply click here

Check it out for… reviews, new products, special offers, promotions, competitions and the latest news and information from around the globe.

0845 643 5523

What size fan do i need for my grow room or grow tent – How to work it out

What size fan do i need for my grow room or grow tent – How to work it out??

Here is a formula for you to learn how to work out exactly what size and power extractor fan you need for your growroom or ventilated area


Visit us at hg-hydroponics to check out our great range of extractor fans at great prices.


Atami wilma 4 pot comes highly recommended!

Atami wilma 4 pot drip feed kit

Have You Seen This product Cheaper? Call 0845 643 5523 we will beat any price!

The famous atami 4 pot wilma kit, has been around for a good few years now, it has been tried and tested and is still one of the best and most simple hydroponic kits around, for the money you cannot beat the value and results, it, comes complete with pump, tank, pots and fittings, excellent piece of kit that produces great results, one of our favourites.

The Atami Wilma growing system has been a run-away success since its launch in Holland. Now available in the UK, this extremely versatile system can be used in many different combinations with any growing medium.

ATAMI Wilma systems are active hydroponic growing systems offering the precision of hydroponic feeding combined with the flexibility of growing in pots. The 4 pot Wilma is the smallest in our best selling Wilma systems. We believe with this addition to the range we have the products to fit all your customers growing areas.

Like all the Wilma systems the 4 Pot is extremely versatile:
• Supplied with both flood & arrow drippers
• High quality ATAMI pots & space saving design – A true hobby growing kit
• INDIVIDUAL POTS CAN BE REMOVED without affecting other pots
• EASY to set up & automatic feeding saves hours of work

695mm x 385mm x 185mm
26.25” x 22.5” x 7.5”

Tank Volume:
30 Litres

Supplied with 4 Atami 11L pots pump, fittings and all accessories!

(growing medium sold seperatly)

Rockwool & clay pebbles recommended

What is Ph? Why is it important? How do i adjust it?

Although it is perhaps one of the most overlooked aspects, pH is very important in hydroponic and organic as well as regular soil gardening. pH is measured on a scale of 1-14 with 7 being neutral. Acids are lower than 7 and alkalis (bases) are above 7.

This article deals with the pH of hydroponic gardening and the availability of nutrients at different pH levels in a soilless growing medium. Organic and soil gardening have different levels, so the following chart doesn’t pertain to them.

To be technical, the term pH refers to the potential hydrogen-hydroxyl ion content of a solution. Solutions ionize into positive and negative ions. If the solution has more hydrogen (positive) ions than hydroxyl (negative) ions then it is an acid (1-6.9 on the pH scale). Conversely if the solution has more hydroxyl ions than hydrogen it is alkaline (or base), with a range of 7.1-14 on the pH scale.

Pure water has a balance of hydrogen (H+) and hydroxyl (OH-) ions and is therefore pH neutral (pH 7). When the water is less than pure it can have a pH either higher or lower than 7.

The pH scale is logarithmic, which means that each unit of change equals a tenfold change in the hydrogen/hydroxyl ion concentration. To put it another way, a solution with a pH of 6.0 is 10 times more acidic than a solution with a value of pH 7.0, and a solution with a pH value of 5.0 would be 10 times more acidic than the solution of 6.0 pH and 100 times more acidic than the solution with a 7.0 pH. This means that when you are adjusting the pH of your nutrient solution and you need to move it 2 points (example: 7.5 to 5.5) you would have to use 10 times more adjuster than if you were moving the pH value just 1 point (7.5 to 6.5).


When the pH is not at the proper level the plant will lose its ability to absorb some of the essential elements required for healthy growth. For all plants there is a particular pH level that will produce optimum results (see chart 1 below). This pH level will vary from plant to plant, but in general most plants prefer a slightly acid growing environment (between 5.5-6.0), although most plants can still survive in an environment with a pH of between 5.0 and 7.5.

When pH rises above 6.5 some of the nutrients and micro-nutrients begin to precipitate out of solution and can stick to the walls of the reservoir and growing chambers. For example: Iron will be about half precipitated at the pH level of 7.3 and at about 8.0 there is virtually no iron left in solution at all. In order for your plants to use the nutrients they must be dissolved in the solution. Once the nutrients have precipitated out of solution your plants can no longer absorb them and will suffer deficiency and death if left uncorrected. Some nutrients will precipitate out of solution when the pH drops also. Chart 2 (below) will give you an idea of what happens to availability some of the nutrients at different pH levels: