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Aquaponics

GIY urban food will feed billions in cities of future – Irish Independent


See on Scoop.itAquaponics for Aquarists

GIY urban food will feed billions in cities of future
Irish Independent
Technologies such as vertical growing and aquaponics will undoubtedly help us to grow more in small spaces in the decades ahead.

 

Stephen Pond‘s insight:

An interesting concept – food empathy is suggested by this article. It dismisses the possiblility that we are going to be able to feed the estimated 5 billion people who will be living in our world’s cities in the next 20 years with inner city growing.  But it does suggest that grwoing at least a few plants is an excellent idea. It may not be the path sustainablility, bit it will produce food empathy where the person who has taken the time to grow a lettuce plant, or added his ownhome grown herbs to a dish will understand the food in a much cleaer way.

 

Proper systems will grow an amazing amount of food, and while it may be true that we can’t feed a hungry family from their balcony aquaponic system, we can reduce the pressure on the farms and inner city aquaponic farms  – especially if we start to install such systems sooner rather than later.

See on www.independent.ie

About

Steve Pond, of Tropical Fish Aquarist, has kept fish both personally and professionally for over 50 years.  He writes regularly on the wide range of current topics that are important to people who keep tropical fish tanks as a passion and a hobby.

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About blueram

Steve Pond, of Tropical Fish Aquarist, has kept fish both personally and professionally for over 50 years.  He writes regularly on the wide range of current topics that are important to people who keep tropical fish tanks as a passion and a hobby.

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One Comment

  1. SharonMarch 5, 2015 at 9:10 pmReply

    Quite a few of the people have adarely said that you should use gravel that may have been true when undergravel filters were the primary method of filtering an aquarium, but with modern filters, it’s not necessarily true any more. Without the undergravel filter plate, you can use either sand or gravel.There are several factors you should consider when planning your substrate, whether it is sand or gravel:1) plants the smaller grain size lets plants root better as long as the bed is deep enough2) grain size there still needs to be some circulation of water (with dissolved oxygen) into the substrate or anaerobic areas will accumulate harmful gasses which can later be released into your tank3) particle material true sand is particles of silica this can encourage growth of diatoms ( brown algae ) that use silica in building their external shell; cichlid sand contains particles of calcium which raise the pH of your tank; some marine sand is made up of crushed shell material that will also raise your pH you need to find a sand that is inert meaning it won’t dissove or react to change the chemistry of your water; there are sand products made for use in an aquarium4) tank inhabitants some fish and inverts like a sand bed for digging and hiding they’ll help you keep the bed stirred up5) ease of cleaning particles of food and fish waste don’t fall into voids in the sand they lay on top where it’s easier to see and remove themShould you decide to try sand, choose your material and grain size carefully and be sure to wash the sand before adding it to your tank. Very fine sand can be an irritant, so I’d go with a coarser grain size. I’ll provide some links with additional information, including one on cleaning/water changes with a sand substrate.

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