Australia's Science Forum

Food grade means it can be sold onto the market and abides by a massive amount of health and safety legislation. The seafood industry in Australia in particular has a huge number of hoops to jump through and many more inspections annually than other areas of primary industry. Even the plastic tubs f...

If a quick result is wanted and needed - notify the media confidentially as even Workcover can drag their heels on big issues. She doesn't need to be the one to do it so it's less pressure on her. It will be sorted within days. You did not hear that from me! :wink2: And yes, I can delete this!!! :w0...

Show this to the teacher to see if it's familiar, there are a few variations.

For those in private schooling or those in the Govt. public service?

PSA News Friday 7 November 2008 General Secretary John Cahill's response to misinformation about the pay case's Memorandum of Understanding There is a great deal of misinformation being circulated about the recent PSA pay deal. This is not unrelated to the fact that there is an internal PSA election...

That's shocking Lorraine. Why can't they repect and appreciate marine life? I'm still waiting for all our smashed aquarium equipment to start to be replaced after our little break-in almost 2 months ago. Hopefully it's not too much longer as a lot of the equipment was mine and I wrap up here at the ...

Thanks guys! The wind may be at my back if the sparkling wine we won is a cheap bottle! Maybe that's how we won by so much last Wednesday.

(there is a yacht we race against called "passing wind" - I kid ye not!)

The Blue Ringers find it very refreshing! Great spot on the lake at Myuna Bay, we used to hold our Italian Bike show there anually but I didn't swim. Sailed it many times though! Speaking of sailing we won the Gosford Sailing Club twillight race Wednesday OUTRIGHT and in our class on handicap by mil...

Salary Increases to Crown Employees (Public Sector - Salaries 2008) Award Memorandum to: Principals IRC 08/31 On 2 October 2008 the NSW Industrial Relations Commission made the Crown Employees (Public Sector- Salaries 2008) Award by consent. The award is part of the settlement of the Public Service ...

Good to hear that all have survived so far Susan. Sudden temp changed do stress marine life, but goldfish like yabbies are quite tollerant of a wide range of temps. I do slow water changes (over 2 hours) to avoid stressing. Slow tap hose in and small syphon hose out. It's funny, the hot water outlet...

True, but look at the cost of any school text these days, especially senior ones.

The DET are probably broke like all state Govt Dept's. They'll be having a cake drive next!

I agree though, it's to improve our quality of work for them (if that's possible) so why charge us?

It's a mild & natural anasthetic. Settles fish to the point where they can be shipped live worldwide with few if any losses. They are less active than normal but still swimming around - just not freaking out. Only a drop or two is needed. "Essential oil of clove has anesthetic and antimicro...

A drop of clove oil to an aquarium will settle fish, it's what industry uses when transporting live fish the world over.

:-( Testing for what? Hopefully you mean training them and seeing how much of a memory fish have - we've done that and it's great fun. We also use our goldfish in our fish farm (comets usually) for introducing bacteria to our 5000 litre tanks a few weeks before releasing barramundi or silver perch f...

We change the activated carbon once a term here. Filter rinse once a week. Filter change once every semester. Partial water change once a week. Test for pH, nitrites, nitrates, ammonia, dissolved oxygen once a week. Complete tank empty and wash/scrub once a semester. It sounds like you look after yo...

A water change about 2 years ago! pH3 - they would have been doing it tough for some time. 7 - 7.3 is ideal. Even packed with fish it would take weeks to get to that level.

Do you feed them blood worms? That can accelerate the pH dropping quicker than otherwise.

The other fish will start to eat them almost straight away hence the look like they've been dead a while. Regular water changes are a must (especially in schools) and pH will never be a problem if done once a week. This along with only as much food as they'll eat in 3-4 minutes once a day and activa...

Water quality. Something had been introduced if they were fine and active yesterday but are mostly dead today. In a science lab it could be a multitude of things from soap/acids/bases to copper sulfate/potassium perm. - all bad for fish. If the dead fish have their mouths agape, they died stressed -...

No, that would just have confused him. He has enough trouble grasping roll call.