I have a few questions about my planed indoor aquaponic system. Instead of just "spamming" the forum with 5-6 different threads it thought to put them in the same thread...

I'm planning to use a 65 liter IKEA-box as a fishtank and have two 55 liter's boxes as growbeds. (Yes, swede's like Ikea )


The fish will be goldfish to start with.

1. Is that tank/growbed ratio ok? 65l FT : 110l GB, almost 2:1.

2. Should the fish tank be transparent or black for the best fish health?

3. How many goldfish should I get?

4. Won't the water level in the fish tank rise and fall a lot in such a system? Should I add one more water tank to have a constant level in the fish tank? I'm thinking about the health of the fish...

5. If a add a large fluidized bed filter can I run the system without fish and just "feed" the plants with seaweed extract, fermented nettles and chicken manure?

6. Will the goldfish like an total empty tank? I'm an animal lover and if I raise an animal for food I want them to be as healthy and happy as possible. The things you can buy from a pet store for aquariums seems more to be for the owner then for the fish.
Not sure if I will eat the goldfish but...