Backyard Aquaponics
A place to discuss aquaponics

We had 13 jump out of the tank this morning, that was about a foot jump up the drain return water flow.

Found 2 still breathing at 7:30 and through them back in and they are now good.

So the total was 18 needed to be filleted, 9 now in smoker and 11 in the vegie patch.

Think I need a permanent shade cover over the tank..

Still even some will help slow the rise so even if you don't have 10-20L it will still help a bit.

That was the reason we stread the addition of ice
We would wait til the one in there had nearly defrosted.
The intecntion was not to reduce the temp but to hold it.

No, I didn't take into account the heating of the water from any other sources or the transfer of the energy to any other sources; if you want a more complicated model with ambient air temperatures, solar radiation, time etc then let me know... no promises about its delivery, but it might make for an interesting diversion when work is a little slow?

Or

Just add ice to the system and observe what happens to the temperature



Scott

Six floaters this morning, temp was 23 when I arrived at school. Removed the dead fish, dumped about 1500 litres of water and added just over 60kg of ice to give the remaining fish a fighting chance this week. Temp has dropped to 20, will see how it holds up. More buckets into all the freezers for tomorrow morning.

One thing to be careful of is too sudden a drop. I don't know about trout but normal aquarium fish don't take too kindly to really sudden changes. I would tend to go for maintaining the temp or dropping it just a degree or two at most. Also doing big water changes to drop the temp could be a problem as well.

My fish all survived, highest temp was about 23/24. This morning the fish just about jumped out of the tank and took my hand of when I went to feed them so they certainly still have an appetite.
I think the cooler that I set up worked quite well at maintaining the temp.

well i must say i have stopped morning the lose of five of my trout on Saturday night right after the second mouthful of fried trout fillet! mmmmm bring on the worm weather and B-B-Q trout i say.
the Ridley marine high protein feed sure did the trick and at around 30 cm and 400 + grams i was very happy with the fillets, so all is well in my backyard AP system once again with the cooler change of weather, and i am already looking forward to trout for next winter!

The rule of thumb with temperature is 2 degrees per day.

Although I think most of our systems go way past that at some stage.

Temps hotting up again this weekend. Not quite as high but 27,30,28 for the weekend and Monday.

26, 33, 30, 29......the high daytime temps are not a problem really, but it has been very warm overnight too, which limits the drop in water temp. The trout have little time left unless we get a cool spell soon.

We have had a peak of 36 degrees, with an average of 27. Water temp has hit 22.

Easterlies are giving me hell at the moment. Just took out my shade sail.

Anyone tried any of the chillers? eg

http://www.guppysaquariumproducts.com.au/chilling-heating/supreme-aqua-chiller/cl-650-chiller-marine-fresh-water-chiller-upto-700l/prod_239.html

I guess they would be a bit expensive to run but for people who only need a month or two to get over the hump might be cost effective. The units themselves seem cheaper than I expected.

You need 9kw for 1000 litres.

They show the 650W as doing up to 1200L with a 5 degree pulldown.

For example the smore expensive but same power unit

http://www.guppysaquariumproducts.com.a ... d_406.html