Introduction: Just Keep Swimming Aquaponic- Grow Wheat Grass
For the Mason Jar contest I decided to try Aquaponics. My kids always wanted a Betta fish, so I thought why not try it in a Large Mason Jar as a Aquaponic system. Plus I had read a blog in which it said never fear failure as they are pillar to success and with every try one gets better at what ever they do. So I went on my quest to make my first Aquaponic system to grown wheat grass. I must say it is so exciting to see the wheat grass grow. For the last one week my house has been a buzzing place with all my neighbor's kids come in to see,"how does the fish poop feeds the plant" and "how plants grown in water". I get featured or not this has been one of the best DIY I have ever done. Sidharth my son measures the length of the plant and Mahi, my six year old observes the fish 3 times a day and they are so happy to introduce Mr.Betta to every one who walks in our house. She is the one who told me to put a pond snail that will eat the fish poop.
Thank You !! Instructable for giving me the opportunity to find my creative side.
Step 1: What You Need
1. Air Pump
2. Bubbling airstone
3. Clear pipe that will go with the Airpump more than 3 feet.
4. Organic Wheat grass seed
5. Clay pebble as your growing medium.
6. Plastic net cup to fit your mason Jar. 3.75 inches wide is what I am using.
7. Mason Jar -1 gallon (Some people suggest having 2.5 gallon at least for betta tank) This is a controversial topic. Since Walmart and Petsmart, and other licensed company sell smaller than one gallon, I will leave it to your love for betta to select from what is adequate to what is desirable. This debate is endless.
8. Beta Fish and Betta fish food
9. Stone for fish bed.
10. RO water to fill the water
11. Microbe-Lift Nite-Out II Nitrifying Aquarium Bacteria- I have used one drops
12. Decoration (optional)- since it is my first time I did not want to use any additional stuff.
13. 2 Large Led Candles(optional)
14. Pond snail.
15. Beta heater- Based on comments I incorporate this in my system. Thanks to all the folks for there suggestions.
Step 2: Assembly
1. First start with cleaning and drying all the stuff with water.
2. Run the pipe through the net pot and the end of the pipe attach it to air stone. Remember to leave extra lenght of pipe inside the jar as we will need to pull the net pot our to feed the fish with out pulling the air stone out of the pebbles.
3. Now Place the air stone and betta heater in the bottom of mason Jar and cover it with stone that were washed with cold running water. Bettas like warm temp of 80 degree.
4. Fill the Mason Jar with water and insert the Betta fish. Remember to put fish food as recommended and also mix in the Nitrifying Aquarium Bacteria liquid drops in the water. I have used 2 drops for one gallon water.
5. Start the air pump and check that it is working and adjust air bubble stone nicely under the aquarium stone so that it does not floats up. Adjust the speed as well at this time. I have kept mine close to minimum.
6. Now cover the mouth of the mason jar with the net pot. Be sure to check the size so that the net pot sits on top and not not sinks in the jar.
7. Make sure that half of the net cup is covered with water. If it is less fill in more.Also betta like to come up to the surface to breath. so make sure there is gap between the brim of the jar and the water level. I see my betta come up many a time.
7. Cover 3/4th of the pot with clay pebbles.
8. Wet the wheat grass seed with water for 30 min and put them over the clay pebble. Soaking the seed help them to germinate faster. I have used organic seeds.
Step 3: Wait, Watch and Enjoy
Place the system where you would like it to be. I have kept mine in the kitchen island and this has helped me monitor the system properly and has a light always on
I have used Led Candles to hide my air pump and also to add lighting effect to the system. Since this is my first time I did not use any decoration inside the jar so that i have less things to worry about. I chose betta fish as it is strong fish it can survive hard condition making it easy for new DIYers of acquaponic. Similarly for seed I have used wheat grass as it is easy to grow them and they grows very fast . One can see the seeds germinating in 3 days. I feed the fish once a day.
I plan to change the 1/3 of the water every week. Today is day 9 of my system.
Once u are done growing wheat grass pull out the wheat grass roots and remove the clay pebbles. Add the new clay pebbles and cover the top with seed that u want to grow.I am also learning as my aquaponic system grows, so please feel free to leave me a comment on how to improve it or what I need to do differently. Thanks you all for the valuable input. I have learnt a lot about Betta from the comments .

Participated in the
Mason Jar Challenge

Participated in the
Indoor Gardening Contest

Participated in the
Homemade Gifts Contest
40 Comments
2 years ago
I'm glad there are so many people that have already commented about how bettas are the worst fish for this environment...but no one has suggested an alternative.
If you're going to do a small scale aquaponics system, I'd not only make it a bit bigger, (just for the fish's health) but just use feeder fish from the pet store, also known as simply guppies! They're a lot cheaper if they happen to die, it's not nearly as expensive to replace them. Also, unlike bettas, which are pure carnivores (they eat worms and bugs only, so you have to make sure you have the right sort of fish food for them) guppies eat all sorts of stuff, and will happily eat plants or pond slime or wrigglers, or anything else they find. And they're a LOT hardier. You would not believe the rank puddles I have found guppies living in, in the wild! They don't care much about water temperature either.
Oh...and the thing about snails eating fish poop? Whoever told you that was an idiot, and I would not listen to the in the future. They eat pond slime and plantlife, like any other snail, and can be partial to any fish food that sinks to the bottom. They also enjoy tiny scraps of meat, which can be left in for a day then taken out later. What they DON'T eat is poop of any kind.
It's not hard to do your own research into each bit of wildlife you introduce into your system so you know what conditions it needs or is found in, in the wild.
Google is your friend!
Reply 2 years ago
Thank you so much for being constructive with your feedback.
After reading the feedback as being this was my first fish 6 years back , I have made sure to keep them in large container with proper care.
I dont want to take out this instructable because it's a great idea if certain pet care conditions are met.
6 years ago
Don't you need some kind of pump that brings the water up through to the plant? Otherwise, how is the water filtered at all? Seems like you would have to be changing the water all the time which defeats the purpose of the plant getting nutrients from the fish waste. I'd love to do this but I'm having some trouble with the mechanics of it all.
7 years ago
This is awesome! I don't have a betta fish but I do have a cat and I was looking for ideas on growing hydroponic cat grass. I have a 4 oz mini mason jar at home (2.5in wide, 2in tall). The plastic net cups come in 2in and 3in varieties. Since I couldn't find a 2.5in net cup, I'm going to buy a 2.5in sink strainer. I'll let you know how it goes when I complete my project.
AQUAPONIC CAT GRASS PROJECT IN PROGRESS: 4oz mini mason jar, 2.5in sink stopper, cat grass seeds.
Reply 7 years ago
UPDATE: finding a plastic net cup or sink strainer to fit my mini 4oz mason jar has been a real challenge. I'm gonna give up the plastic net cup/sink strainer idea. I watched a bunch of wheat grass youtube videos and got another idea. I'm going to get my cat grass and soak/drain every 12 hours until the roots sprout, then i'm going to keep the seeds moist with a spray bottle. Let's see if it works!
Reply 7 years ago
What a great idea, NancyF22! I must try that.
7 years ago
Sorry if it comes across as critical, but this isn't enough space for a betta fish. Petsmart and Walmart do not sell healthy fish, so that shouldn't be used as a benchmark. These fish need a heated tank with a minimum of 10gallons of water (http://www.peta.org/issues/companion-animal-issues/cruel-practices/betta-fish/). I love the concept of this instructable, but is there anyway you could do this on a larger scale?
7 years ago
High high should the water reach into the pot? Should the seeds be touching the water?
8 years ago on Introduction
The root of my wheatgrass started to grow into my tank, is that bad?
Reply 8 years ago on Introduction
It is supposed to grow out and in the water. If it grows too big you can also trim it. What I have seen is that the fish likes to hide in them. Hope I answered the question
Reply 8 years ago on Introduction
you did, thank you!
8 years ago on Introduction
Great instructable!
8 years ago on Introduction
I got the glass jar but 3" net pots don't fit. The jar opening measures 4" but 4" net pots aren't available. Are you using 3.75" net pots?
Reply 8 years ago
Sorry for that. It is 3.75 inches. I went to the store and double checked.
Reply 8 years ago on Introduction
Thanks for checking :)
8 years ago on Introduction
So I don't know much about fish and what is considered proper treatment versus cruel treatment. When I went to my local Petco, I noticed they keep their bettas in small pintsized containers. Granted, they probably only in there until someone buys them. Surely there must be a better way. Lead by example, Petco!!
Reply 8 years ago
They are usually in those little cups until they die which isn't long because they don't have heaters and don't change the water often. Not all fish stores treat their bettas poorly.
76 is generally considered the absolute coldest water you should keep a betta in, however they do best at 80-82. Keep in mind that water in a jar is around 3 degrees cooler than the room temp, so if it's 75 in your house, it's around 72 in the jar.
The temp fluctuating is really bad for them and it happens often in a small jar. Water around 76 would be ok if it wasn't fluctuating.
People for some reason think it's ok to treat bettas in a way that they would treat other animals, even other fish, because they are hardy. Doesn't mean you aren't taking years off his life though. Best of luck to you and happy holidays!
Reply 8 years ago
Argh! Best of luck, Sonika. Sorry for responding all over the place. Using my phone.
Reply 8 years ago
yay..I got Betta water heater and a snail. But one gallon is OK as Petsmart,Walmart sells one gallon tank for Betta. So now I feel much better.
Reply 8 years ago on Introduction
No offense, but they also sell "tanks" that are 1 gallon divided into two for two bettas which is absolutely not ok. I wouldn't trust something just because they sell it. Walmart is notorious for treating their fish poorly (they are probably the worst), fyi, and Petsmart and Petco employees aren't trained in proper fish care. A lot of them do seek out information on their own, but a lot don't.
Tank size is a controversial subject, but personally, I believe 2.5 gallons is the smallest I would go. Some say 1 gallon is ok as long as you keep up with water changes.
www.bettafish.com has a lot of useful information as well as water change information.
Glad you got a heater!! Your betta will thank you by being more active and colorful. :)