First off to make this project work you need to have a peristaltic pump that can go forward and reverse on a controller some how. Lucky for me the Neptune DŌS does allow forward and reverse functions.
The equipment setup.
I found a mini frig on Amazon for about $40.
Living Enrichment Mini Fridge Chilling and Warming, Portable Compact Refrigerator AC/DC Power, 4L 6 Cans Capacity, for Skincare, Foods, Medications, Milk, Home and Travel White https://www.amazon.com/dp/B08G54RG9...t_i_0RZ0KW5DYBG0NX6RPT47?_encoding=UTF8&psc=1
Then you need the peristaltic pump and 1/4” nylon tubing, and a magnetic stirrer.
Magnetic Stirrer 4.72 Inch Stir Plate Magnetic Mixer 2500 RPM Speed Stirrer Machine with 4 Stir Bars for Milk Tea Coffee Wine Laboratory Liquid Stirring https://www.amazon.com/dp/B09FKWGJ6...t_i_3EDMBGPJMVAYJ3ZZ22AS?_encoding=UTF8&psc=1
Setup. I started off with drilling 2 holes in the back of the mini fridge. One at the top for the nylon tubing. The other is for the power cable for the magnetic stirrer. I used a little rubber seals around the cable and tubing to seal the holes. This was to eliminate temp loss or smells seeping out. Now run the tubing to the inlet of the doser. Then run tubing to your tank. I ran the out line to my return section tho. I did this so the food will get dispersed in the two tanks. You have to make sure the end of the nylon tubing does not touch the water. Mine is about 2” off the water line.
Now for programming if you using the dōs and the apex. First I start off by setting up the magnetic stirrer. I have the magnet stirrer pulled into an outlet on one of my eb8’s. Here is the coding I use on the mixer.
Fallback OFF
Set OFF
If Time 11:00 to 11:01 Then ON
If Time 13:00 to 13:01 Then ON
Defer 000:55 Then ON
These codes turn the mixer on for 5 seconds. Once at 11:00:55 and the second at 01:00:55pm.
Now you need to find out how many milliliters it take to fill the tubing and the dos head. I did this by filling the line with RO/DI then after the line is full take the in-line out of the water. Put a milliliter measuring cup at the out line. Then run all that water out of the tubing. The water that is in the measuring cup is how much liquid it takes to fill the line. You need to know this for two reasons. One is so you know how much you are feeding and how much you need to program the pump to go in reverse so the food doesn’t sit and rot in the lines. It takes 28ml to fill the tubing and head on my setup.
Now that you know how much it takes to fill the tubing you can do the programming. With the dos you need to go into the profiles section of fusion. Select a profile and rename it. Select dose on type of profile.
I labeled the profile dos_forward. I then select 250ml per min on dose rate. The directions of pump is forward. Now here’s why you need to know the amount it takes to fill the line. So it takes 28ml to fill the line and I put 50ml dose. This means I’m dosing 22ml of food when the dos_forward profile is activated on the dos settings. The intervals really doesn’t play a part in this case.
Now for the reverse profile. I select a different profile and labeled it dos_reverse. I use a slower motor speed so that the fluid will go back slower into the food container. I selected reverse on the motor direction and put 40lm. The 40ml will make sure that any liquid that is in the line will go back into the food container. This is why I don’t have the exit line sitting in the water.
Now for the programming of the dos
Fallback OFF
Set OFF
If Time 11:01 to 11:02 Then Dos_Forward
If Time 11:02 to 11:03 Then Dos_Reverse
If Time 13:01 to 13:02 Then Dos_Forward
If Time 13:02 to 13:03 Then Dos_Reverse
Here’s what these codes do. At 11:00am and 55 seconds the magnetic stirrer turns on for 5 seconds to mix the food. Then at 11:01am the dos doses 22ml of defrosted frozen fish food. Then at 11:02am the dos clears the lines so no food is left in the lines.
This same process repeats at 1pm
The equipment setup.
I found a mini frig on Amazon for about $40.
Living Enrichment Mini Fridge Chilling and Warming, Portable Compact Refrigerator AC/DC Power, 4L 6 Cans Capacity, for Skincare, Foods, Medications, Milk, Home and Travel White https://www.amazon.com/dp/B08G54RG9...t_i_0RZ0KW5DYBG0NX6RPT47?_encoding=UTF8&psc=1
Then you need the peristaltic pump and 1/4” nylon tubing, and a magnetic stirrer.
Magnetic Stirrer 4.72 Inch Stir Plate Magnetic Mixer 2500 RPM Speed Stirrer Machine with 4 Stir Bars for Milk Tea Coffee Wine Laboratory Liquid Stirring https://www.amazon.com/dp/B09FKWGJ6...t_i_3EDMBGPJMVAYJ3ZZ22AS?_encoding=UTF8&psc=1
Setup. I started off with drilling 2 holes in the back of the mini fridge. One at the top for the nylon tubing. The other is for the power cable for the magnetic stirrer. I used a little rubber seals around the cable and tubing to seal the holes. This was to eliminate temp loss or smells seeping out. Now run the tubing to the inlet of the doser. Then run tubing to your tank. I ran the out line to my return section tho. I did this so the food will get dispersed in the two tanks. You have to make sure the end of the nylon tubing does not touch the water. Mine is about 2” off the water line.
Now for programming if you using the dōs and the apex. First I start off by setting up the magnetic stirrer. I have the magnet stirrer pulled into an outlet on one of my eb8’s. Here is the coding I use on the mixer.
Fallback OFF
Set OFF
If Time 11:00 to 11:01 Then ON
If Time 13:00 to 13:01 Then ON
Defer 000:55 Then ON
These codes turn the mixer on for 5 seconds. Once at 11:00:55 and the second at 01:00:55pm.
Now you need to find out how many milliliters it take to fill the tubing and the dos head. I did this by filling the line with RO/DI then after the line is full take the in-line out of the water. Put a milliliter measuring cup at the out line. Then run all that water out of the tubing. The water that is in the measuring cup is how much liquid it takes to fill the line. You need to know this for two reasons. One is so you know how much you are feeding and how much you need to program the pump to go in reverse so the food doesn’t sit and rot in the lines. It takes 28ml to fill the tubing and head on my setup.
Now that you know how much it takes to fill the tubing you can do the programming. With the dos you need to go into the profiles section of fusion. Select a profile and rename it. Select dose on type of profile.
I labeled the profile dos_forward. I then select 250ml per min on dose rate. The directions of pump is forward. Now here’s why you need to know the amount it takes to fill the line. So it takes 28ml to fill the line and I put 50ml dose. This means I’m dosing 22ml of food when the dos_forward profile is activated on the dos settings. The intervals really doesn’t play a part in this case.
Now for the reverse profile. I select a different profile and labeled it dos_reverse. I use a slower motor speed so that the fluid will go back slower into the food container. I selected reverse on the motor direction and put 40lm. The 40ml will make sure that any liquid that is in the line will go back into the food container. This is why I don’t have the exit line sitting in the water.
Now for the programming of the dos
Fallback OFF
Set OFF
If Time 11:01 to 11:02 Then Dos_Forward
If Time 11:02 to 11:03 Then Dos_Reverse
If Time 13:01 to 13:02 Then Dos_Forward
If Time 13:02 to 13:03 Then Dos_Reverse
Here’s what these codes do. At 11:00am and 55 seconds the magnetic stirrer turns on for 5 seconds to mix the food. Then at 11:01am the dos doses 22ml of defrosted frozen fish food. Then at 11:02am the dos clears the lines so no food is left in the lines.
This same process repeats at 1pm
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