It is now a safe bet to tell you the prawns did not survive. I had a good look this morning and no sign of any. All gone.
The cat fish on the other hanad of course look 'frisky', that is, if cat fish can look such a thing.
This weekend will see me clearing out the accumulated sludge that has built up in the header tank. Might also be a good idea to install a bottom drain tap to make it easier for cleaning the next time round. I'll buy the fitting this afternoon and see how I feel on Saturday about doing anything!!!
I'm also thinking about adding a second tank for prawns but really I do need to let this set up work its way through one cycle first. Its only been on the go for 40 days. What I will be doing is weighing the fish and from here on in will be checking them on a weekly basis. Should be an interesting exercise and indeed I will also start to monitor and weigh the food I give them. Make it all a bit more scientific.
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