Backyard Aquaponics
A place to discuss aquaponics

I wouldent seeing theres virtually no plants its probley still 2 ppt now
You need a refractometer
Better still everybody in aquaponics needs one

It was suggested to me at some point to salt to 6ppt to fix disease, so I'm guessing it would be okay for you to salt to 3ppt again without too much trouble. It has been stated that it is more the shock treatment of salt that cures disease and rather constant level of up to 3ppt is a good preventative measure.
Just be carefull when adding the salt, although it is said to add all in one go (for effective shock treatement) I once added a lot of salt to a small quarauntene tank holding a sick goldfish and pretty sure he died of burnt gills, he reacted instantly to the addition of salt and soon after carked it! (no big loss)

When I salted my big system recently after adding new fingerlings, I measured out the appropriate ammount of salt in a bucket then filled the bucket with system water, swirled a bit with my hand and then distributed the bucket across all the FT's and ST's, retaining the undissolved salt in the bottom of the bucket, then filled the bucket again, swirl and repeat untill all the salt was dissolved and added into the system.
Alternativly I have just added the appropriate measure of salt in a bucket with holes in it to the sump and let it desolve over time and then let it distribute through the system naturally.

http://www.aquariumproducts.com.au/cata ... 9&catID=22

Well i may Purchase one of these tonight. I only ordered some gear form them last week.

will grab one asap.

only plant thats in there is a large mint basil, that is wild. (this is the indoor system)

the outdoor system has growbeds full of plants but i'v not lost 1 trout, i am wondering if the trout brought somthing nasty in...... cos the day after i got the trout i lost 2 silvers in the outdoor system, i then moved the small system indoors and moved the rest of the silvers into it, whilst moving it indoor i stored the water from it in the big system, then moved it back.

i will see how things pan out, will get the refractometer and see how i go, dont wana lose too many more :/ and i dont wana put them anywhere else incase of diesese spreading.

IBC is coming soon to go in the garage as the main tank and then will have 4 of the 200l barrells full of media, and a solids removal system and a 300w heater to keep water temps around 18c.

Whats your PH reading. Have you adjusted your PH up at all. I know when I adjusted my PH up I lost a few silvers but jades were OK. Silvers do not like PH spikes.

check ebay refractometers sometimes are as low as $19.00
http://shop.ebay.com.au/sun_mart/m.html ... 4340.l2562

Hang on, hang on...... Did you day you had silvers in with trout?

Trout will stress silvers to death, we've had it happen before, big silvers stressed to death by little rout fingerling.

Se now we know why he is the boss i never thought of that

i know my status says salmonid, however im not stupid

i had the silvers in the SUMP of the outdoor system..... no trout in there there in the FT.

and most of the beds are running CF so other than 2 beds running siphons the sump only fluxuates 100mm of water level so its not that either.....

i wish there was some obvious answer..... but there just isnt... no deaths for over 12 months then pow this.........

i feel like a silver in a tank full of barra atm.... STRESS.....

im checking them every couple of hours.... prob kill them due to stress from my head over the tank too often

That's fish for ya...

Yep bloody things...... stranger creatures than wifes


Ahh well on a better note i made a very large pot of Chicken & veggie soup thisarvo.

great too see the kids devour it with some fresh Sourdough from a bakery in town.

Yum!!!!!!!!!!

do you have a microscope? If so, take a fish out, cut out he gill rakes and place on a slide. My bet is you will see little blighters with hooky ends on their worm like body... gill flukes.
Fish can handle a fair amount of them until they are stressed. Gill flukes cause deaths with no perceivable damag until you put the gills under a scope.

Jamey... what have your day/night temperatures been over the last week or two.... both air and tank???

all silver are now indoors (have been since monday) temps are as follows

M T 21.2c
W 20.4c
T F 19.6c
today 18.4c

Over night temps have been dropping to 7, 8 over night and about 18-21 during the day

Shed is well insulated and the temps have only dropped due to the lower night temps.

fed 6g of food M W F to approx 8 60mm, 10 40mm and 10 25mm silvers that reside in the tank

Lost 2 (prob stess to moving on sunday night)

and 2 thurs.



The outdoor system temps i was unsure about but it would be cold.... 14-16c as a guess lost 3 my biggest ones (80mm) in outdoor system and now i think about it it was 2 days after moving them from the main FT too the ST so it may have been stress also.

will see how things go over the next few days, if there is more loss i will Post Temps levels and pics of victims as soon as i can.
keeping a log of temps, levels etc daily on the system atm.

lost another 4 over night.... all tests are fine temp is 17.1

might do a water change, 80-90% see if that helps, its becomming a thing now...... guessing its some kind of parasite/virus.

I'm tending to agree with Monya.... gill flukes...