Posts Tagged ‘Aquaponics’

Feeding our happy little fish

The carp are here and enjoying their new home. It was slightly surreal coming home to a box of live fish, but after a gentle introduction to our tanks they all swam off happily, showing no ill effects.

We got a couple of kilos of carp food delivered with the fish, but as they’re far more omnivorous than the trout we’re keen to try something a bit more home-grown.

Some of our sumps are doing well at growing duckweed so I thought that would be a good start and added a net-full of duckweed to their tank.

They’re much gentler feeders than the trout, so I haven’t seen them aggressively attacking clumps of weed, but it is steadily disappearing.

At this stage, with tiny digestive systems, they need to be able to “graze” through the day, and I think the duckweed helps with that between their main feedtimes.

As they grow we’ll try to expand their diet further to see if we can eventually produce all their feed in-house – ideally from waste, or areas we’re not using for our food

The Carp are coming (by post!)

At some point I’ll manage to document the roller-coaster ride that was our first go at Aquaponics. Suffice to say it was a mixed success – we got to eat lots of delicious trout, but lost quite a few on the way too.

We’ve spent the last 18 months doing a major redesign to get the fish out
of the polytunnel, and we are finally ready to go again – the system has been split to allow for different sizes, and different species, so we’re now eagerly awaiting our first Carp delivery ….

Sepp Holzer’s Permaculture & Aquaculture

I’ve been interested in permaculture for years but this is one of the best examples of cold-climate permaculture I’ve ever seen – really clever integration, in an incredibly difficult climate. If they can do it on an Austrian mountainside we should be able to do something here in Manchester.

How much food would you like to grow?

If you’re serious about growing your own food, you need to look at Growing Power in Milwaukee. Here are the headlines:

  • Three acres
  • 450,ooo kg of food a year
  • 10,000 fish

Show me a non-aquaponic system that can produce that! Take 5 minutes of your life and look at a non-profit doing something amazing:

Still harvesting!



In spite of the snow and big freeze before Christmas (it got down below -10c) we have been able to keep harvesting food from the aquaponics and under the fleece tunnels. The pic on the left is perennial spinach, and the one below is the first of our aquaponic leeks heading for the dinner table.

And here’s some of our Ruby Pak Choi:

Happy New Year!

It’s been a great 2010 at the Trafford Eco-House, we’ve not posted updates recently not due to lack of activity, but the opposite!

The garden’s been going well and we’ve got trout and beds of winter veg surviving the snow. The pace isn’t going to stop in 2011 though, this is the year when the changes to the house should happen:┬áSolar PV, Solar Thermal, Woodburner with Flue Boiler, extension with bike garage, wrap the whole thing in external insulation, put up much thicker curtains.

The garden in 2011 will keep us busy too – we’ll fix up the shed and give it a green roof, expand the aquaponics, and dig over another 500sqft of turf into veg patch.

Looks like a fantastic year ahead, and we’re really looking forward to what we’ll be saying this time next year.

Hope you’ve all had a good 2010, and are looking forward to an even better 2011.

The Trout are growing well!

We’ve just got back from a week away, and in our absence the trout were being fed by an automatic fish-feeder. They seem to be pretty happy with that arrangement as they now look huge – at least in comparison to when we left!

We weighed them to see and their weight is now over 35g – doubled in the last two weeks. Time to up the amount we feed them again.

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