Backyard Aquaponics
A place to discuss aquaponics

Are (were) the trout still taking feed at 26C?

The problem with Trout is they will feed all the time. On hot days I do not feed them. So far I have a batch of Fingerlings from September last year still in one of the tanks. If I can keep them happy then they will have a long grow out till November / December.

Sorry for taking the thread off-topic. Are these rainbow trout, Salmo gairdneri?

I have never asked. I get my Trout from the South Australian Fly Fishing Association usually in September, they are no more that about 1 - 2 cm in length. They source the eggs from Tasmania, Victoria and NSW according to their web site.

Ah, probably not rainbows then. They usually stop feeding at 20C and die off if the water stays much above 25C.

Any thing is possible as they market them as Rainbow Trout as last year they also sold Brown Trout. They look like Trout and taste great that is all I worry about. I have also had some from Tooperang Trout farm and are the same, as they just keep feeding.

Not like my Silver Perch, two years old now so this year they will come out but I will not get them again.

As far as I am aware the WA rainbow trout can handle slightly higher temps not sure about those in SA.
Never kept them so I'll leave it up to someone who has.

Gday Johny5
Thanks for sharing your Data Logger build. I've been looking into this kind of thing for some time. It sure beats manually writing data in a log book. I've never had anything to do with Arduino before, so have been doing a bit of research into it before building anything. I'm now semi confident that I can build it & with the code you have kindly provided I should be able to get the thing to run.
So now I'm purchasing the components from Ebay most are straight forward : Ethernet shield, Real Time Clock Module, Temp Probes, 16x2 LCD.
The prototype board is a bit harder to work out would this be suitable ? http://www.ebay.com.au/itm/New-Prototyping-Prototype-Shield-ProtoShield-With-Mini-Breadboard-Arduino-/400780925541?pt=LH_DefaultDomain_15&hash=item5d50679a65 & what type of resistor are required ?
Thanks
GTK

I've usually seen the DS18B20 sensors use a 4.7 k-ohm resistor as a pullup. There are some hardware tutorials on Adafruit. Although they are using a Raspberry Pi instead of Arduino, the wiring is the same. See the DS18B20 page on Adafruit for more info and links to the tutorials.

Hi gtkmarine

As Jim said you will need a 4.7 k-ohm resistor as a pullup. As I use just one resistor for 6 Temp probes I had to increase its size. As I had a 3 Watt 4.7K resistor on hand I used that. It may be over kill but it was what I had on hand.

For the prototype shield that one will do to test and experiment with. I just walked into Jay Car and purchased a board that was in stock to experiment with but I cannot remember what it was.

I need to get back to mine as I have more updates for it.

Thanks
Have ordered all the components, now just waiting for them to turn up in the mail before the build.
Ill keep watching this tread with interest.
GTK

I guess I had better find some time for the update.

Dear Johny5

I tried to assemble this datalogger system to use in a laboratory using basically the same parts except for the LCD shield (I used a generic one without keypad) but I couldn’t manage to make it work. The RTC keeps given me errors.

What library did you use? Can you post a link?

I am new to programing and to Arduinos but I am very interested in this project.

Thanks for sharing it!

Dear Johny5

I tried to assemble this datalogger system to use in a laboratory using basically the same parts except for the LCD shield (I used a generic one without keypad) but I couldn’t manage to make it work. The RTC keeps given me errors.

What library did you use? Can you post a link?

I am new to programing and to Arduinos but I am very interested in this project.

Thanks for sharing it!

Hi felipe

Sorry for the slow reply. Busy time here at the moment. The lib I use is "RTClib" it should be easy to find on the net.

I could not see your RTC in the photo. This the RTC I used http://www.ebay.com.au/itm/170910326110 ... 1436.l2649 with the above lib.

I wil check back later to night ans see if I can provide more information.