Backyard Aquaponics
A place to discuss aquaponics

I have just noticed that I have about 10 dead frogs in my system.
I had just mentioned how they had arrived the other day and how noisy they were.
Well their very quiet now!
I have been thinking what might have killed them.
I am at a loss..
They were very happy the night I noticed them.
All piggy backing each other.. to coin a phrase.
Geez if that is what happens I'm gonna become celibate.
The only thing I can think of is I put a small amount of trichoshield prolly only a gram or 2 in more than a few 1000 ltrs.
Any ideas?

ph is @ 8 yuk.
That is a worry.

C1, tricoshiled sound like a chlorine based disinfectant,. You realise that 2 grams in 1000 is 2PPM chlorine?

I checked the product site and it didn't mention any chlorine.
I have just got of the phone from a bloke he is thinking that maybe the ponds are starting to cycle and CO2,algae and Ph.
He knows I don't have fish yet...
More soon

Its just that frogs have the ability to get out of water that does not suit their needs. What ever was in the tricoshield would have probably done it. Let us know what you find

Aerating the water, driving in carbon dioxide, is shown graphically in Figure 5. As carbon dioxide is added, the data point representing the aquarium's pH and alkalinity begins to shift horizontally from the "CO2 Deficient" curve to the normal CO2 curve (green line in Figure 5). Aerating with normal air cannot overshoot, and perfect aeration will land the aquarium on the normal CO2 line. Aeration with interior air that may contain excessive carbon dioxide can overshoot the pH target, and drive the aquarium's pH even lower (Figure 6).



Figure 5. The effect of aeration on alkalinity and pH.



Figure 6. The effect of aeration with air containing excessive carbon dioxide
(or otherwise adding excessive carbon dioxide) on alkalinity and pH.

I dont know if the table is going to show

Yes I will thanks steve, glad my fish are not in there at the mo'

Where were the dead frogs found C1? In the tanks? Is it possible that they could not get out of the water and eventually drowned?

I would not be suprise about the trichoshield frogs are ultrasensitive to change in water. But then I would be suprised if there is a higher conc. of Cl in tapwater anyway.

Have they got what looks like cysts or sores on them? This could mean that they may be victims of the frog virus. The parasites also love warm water.

TimC- Frogs were able(prior to death)to move freely between 'ponds'.
It does look like they my have drowned very bloated one laiden with eggs coming out of its mouth by the looks.
The water temp is close to 16c only

Man that is disgusting.
That took 1 day for the decomposition to start on the frogs.
Seems like they started dyeing(?) around the same time.
I have checked the trichoshield site again and there should be nothing to do them harm.
It is a benificial bacterial builder which may have blown out the bacterial buildup, that combind with heaps of sun and lots of oxygen.
Could I be looking at an algle bloom creating toxic water?

Hmmm. If the trichoshield killed off diatoms in the pond they may have released viral spores in the vicinity of that pond.

But that doesn't make sense if it's a new pond it takes a while to have the bacteria to kill. How new?

I think you're right.

Bacterial crash - dead diatoms - release viral spores - dead frogs.

AD- not that new but was very clean prior to getting ready.
I have been having a closer look and there is a fair bit of algee, long strands .
Is this elephant snot?
I have heard some bloom grows so rapidly the unofficial name is elephant snot.

That elephant snot is a local question....

Not that new a pond - two - a few weeks?

Diatoms are most populous at the end of winter. On plants and wood.

They would be yellow and brown, among green algae normally.

No AD years.

I have done a 'Change out' about 30% water the Ph may have change slightly, I will check again in the morning.
C1