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john1

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  1. Hi When I bought my clowns, they had grey stripes. After a while in my tank, the stripes became pitch black. Usually happy and contented. But this is not conclusive. Only an observation. John
  2. Hi Yes, any vertical piece of MDF can be called solid wood. Incredible strong. But make absolutely sure the ends are also sealed. Water is a killer on MDF. Swells to twice the size if unsealed. Otherwise it is ok to use. John
  3. Hi According to the pics, it should withstand a couple of tons. Cannot beat a solid wooden stand. Also doors, shelves etc. are easier added. The outside painted to suit the room and bingo, a beautiful piece of furniture. John
  4. john1 replied to Matthew's topic in Technical
    Hi Mathew If the Co2 of 20mg/l is correct, then it is almost perfect for fish AND your plants. Good luck John
  5. john1 replied to Matthew's topic in Technical
    Hi Mathew Now that we know it is 300mg/l then we can talk a bit more. If you had any fish in there, they would be dead by now. 30mg/l is the maximum fish can tolerate. Not plant, fish. John
  6. Hi peety I am not sure what you are trying to tell me/us about the link. Are you affraid to catch that virus? If so, then 100 different buckets and hoses would NOT help you. John If I misunderstood the link, then I will stand corrected
  7. Hi peety. Marinetanks set aside. What would you do if you had 20 tanks? Have 20 pails & 20 hoses? Just a thought. After all, TB could be anywhere. John
  8. john1 replied to Matthew's topic in Technical
    Hi Mathew Ok, let us assume no plants. No danger then. But what does '300' mean? Thanks John
  9. john1 replied to Matthew's topic in Technical
    Hi all OOOOOOPPPPSSSSS. Now it is working. :oops: John
  10. john1 replied to Matthew's topic in Technical
    Hi Mathew I don't know what you mean by "300". Fish can only tolerate a level of 30mg/l. 15 to 20mg/l is ideal. If you want to know what Co2 level you have in your tank, then download the Co2 calculator from my site. But, you have to know EXACTLY the correct dKH and pH. Input these values into the calculator and the reading will be the Co2 content. John
  11. john1 replied to Aqua's topic in Technical
    HI Aqua If it works underwater, then the pump-problem is solved. Your problem is the "PRIMER" . If there is NOT enough water in the chamber, it cannot pump. When I bought mine, the primer, looks like a suctioncup, was bent out of shape. But it workes. Needs a few more strokes than with a good, straight one. There is one more thing you can try. Don't laugh now. Get the outlethose ans suck until the water flows. That is ONE way of priming. Let me know how it works. BTW, if there is air in the pump-chamber, it will NOT work, the pump that is. John
  12. john1 replied to Aqua's topic in Technical
    Hi Aqua Take the top off, immerse it upside down in a big bucket or bathtub. Switch it on, then you can see what happens. Is the impeller turning or not etc. John
  13. john1 replied to Aqua's topic in Technical
    Hi Aqua I also have a 304. The white "thing" is the ceramic shaft. Not repairable. I made a comment about that in my article. http://www.aquarticles.com/articles/management/Fichtl_Filter.html. Not very expensive though. It's the inconvenience. John
  14. john1 replied to Ira's topic in Technical
    HI Ira Don't be ashamed of not knowing what organ is what. According to Melbourne Bill, a pathologist, even medical students have difficulty what the difference between liver and kydney etc. is. But you should get yourself a microscope. I tried it with one of my dead guppies. The microscope was damaged by my 6 year old son. Put glue onto the lenses. The scalpel I had was blunt. The outcome, a horrible mess of blood and guts. So I gave up. The other fish, much bigger was easier to disect, but without a good working microscope you are back at square one. But it was quite interesting. By the way, I did not appologize to my fish :oops: John
  15. john1 replied to macka's topic in Technical
    Hi macka You can try a needle valve from a model petrol motor. Like I have. Cost A$15. It is from an "OS" motor. Sometimes referred to as "remote needle valve". Works straight from the box with good clamps. Or you modify it with barbs to suit your hoses. John

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