Select Page

Blog

 

Sandponics – the Phoenix Rising!

This web site is the original home of iAVs...the integrated Aqua-Vegeculture System.   Regrettably, iAVs' effectiveness as a method was not matched by the effectiveness of its promotion.  That was the result of two things...that it was free...and the belief that, if...

read more

Sand Selection Guide

Given its central role in the success of iAVs,sand is dear to our hearts and is something we'll be talking about - a lot. We thought that the following 'Pocket Guide' might be helpful for those wanting to create a highly efficient biofilter. For comparison, common...

read more

Sand versus Gravel as Biofilter Media

  This article provides more detail around the proposition that sand is a much better 'aquaponic' growing media than gravel......or expanded clay pebbles. GRAVEL >      VS  SAND >   (click image to enlarge) Sand is the better medium because of its: Much more effective...

read more

The Ultimate Food Production System?

If you could wave a magic wand and invent the most productive, resilient and sustainable food production system in the world what would it look like? Before you do that, however, let’s think about why building the ‘ultimate’ food production might be a worthwhile goal?...

read more

Growing Your Own iAVs

Aspiring iAVs operators are often confused about how to approach their first build. I always recommend that newcomers to the method start with something small...a fish tank of 500 to 1000 litres and a sand biofilter/grow bed of 1000 - 2000-litres...which is 3m - 6m by...

read more

Turning a Sow’s Ear into a Silk Purse

In "Aquaponics' Biggest Mistake" we spoke about how the basic flood and drain system came into being - how it started off as a mistake and then became the subject of wilful ignorance - and then how it became the dominant aquaponics model throughout the world....

read more

Aquaponics’ Biggest Mistake

Most people who are interested in aquaponics know that Missouri farmers Tom and Paula Speraneo popularized what is commonly termed flood and drain aquaponics. For the uninitiated, flood and drain aquaponics in its simplest guise comprises a fish tank and one or more...

read more

Sand Particle Range for iAVs

Sand Particle Size Range Particle Size Measurement Percentage Very Coarse 1 – 2mm 40 +/- 10 Coarse 0.5 to 1mm 40 +/- 10 Medium 0.25 to 0.5mm 20 +/- 10 Fine – Very Fine < 0.25mm 0 to 5 Clay and...

read more

Sand Bed Lifespan and Maintenance

One of the questions that crops up from time to time is....."Do sand beds need cleaning?" No form of so-called 'aquaponics' is a perpetual motion machine.  Every 'system' type requires periodic maintenance - and iAVs is no exception to the rule. Everything that one...

read more