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amtiskaw

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Posts posted by amtiskaw

  1. Yes I can, same as I am using the temp reading to turn ON/OFF the heater. The code is not open source. This was developed out of hobby, so not producing this for profit, but I am willing to make on order for a price that will cover the cost of hardware and allow me to develop more exciting devices.

    Hats off to you, mate - that's some fantastic work. :bounce:

  2. Yep, I just had a look at a can of Raid which has three active ingredients, and they are all pyrethoids:

    Tetramethrin (1,3-dioxo-4,5,6,7-tetrahydroisoindol-2-yl)methyl-2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropane-1-carboxylate

    Phenothrin (3-Phenoxyphenyl)methyl 2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropane-1-carboxylate

    Allethrin (1R-(1α(S*),3β))-(2-methyl-4-oxo-3-prop-2-enylcyclopent-2-en-1-yl)-2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropane-1-carboxylate

    In testing, the LC50 (concentration that killed half the test subjects) for Allethrin ranged from 2.6 ppb for bioallethrin in coho salmon to 80 ppb for s-bioallethrin in fathead minnows. That's parts per billion.

  3. Good old permethrin - sounds much more cuddly than it's full name, 3-Phenoxybenzyl (1RS)-cis,trans-3-(2,2-dichlorovinyl) -2,2-dimethylcyclopropanecarboxylate.

    "Permethrin is extremely toxic to fish and aquatic life in general, so extreme care must be taken when using products containing permethrin near water sources."

    "Permethrin does not present any notable genotoxicity or immunotoxicity in humans and farm animals, but is classified by the United States Environmental Protection Agency (EPA) as a likely human carcinogen, based on reproducible studies in which mice fed permethrin developed liver and lung tumors. Carcinogenic action in nasal mucosal cells due to inhalation exposure is suspected, due to observed genotoxicity in human tissue samples, and in rat livers the evidence of increased pre-neoplastic lesions raises concern over oral exposure."

  4. what does clove oil actually do? poisions them? you could always do what a lot of people do when out fishing. stick a sharp knife into the brain and give it a couple of twists

    It works as an anaesthetic. I wouldn't be confident I could locate a fishes brain, let alone stab it accurately.

    It's funny how you get emotionally invested in pet fish. I still enjoy fishing, but I get twinges of guilt sometimes. It must be terrifying getting hauled out of your environment in such a painful manner :tears:

  5. they aren't all the same

    Well, duh - I don't know many living things that are. From what I've read, you can train most problem ones out of bad habits or nervousness, and get them to bond with you - especially if you get a young one.

    Sadly I don't have enough time to raise one with the care and attention it would deserve :cry:

    Anyway, negative comments aside, you have to admit that one's damn cool :)

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