I started a 400 sf greenhouse in January to house my first aquaponic system. I decided to use a 275 gallon IBC in the ground for a tank. I have 4 half barrels for media beds with river rock. I plan to expand and have another 6 or 8 grow beds by the end of the summer. I found a really helpful youtube link that will help calculate the amount of media needed per pound of fish based on the type of media.

I have been cycling the system with gold fish for about two months. I have nitrites and nitrates present and starting to see a little growth in the grow beds. It has been a lot of work but I hope it will pay off this fall and over the winter and by next summer I would really like to have another IBC or two and have the greenhouse full of grow beds.

wrong pic that is not my grow beds. That is a raised bed in my garden from the spring lol.

Here is the fish tank and grow beds

Looks beautiful! Do you know what type of fish you want to raise next year?