Jump to content

Search the Community

Showing results for tags 'oxygen'.

More search options

  • Search By Tags

    Type tags separated by commas.
  • Search By Author

Content Type


  • QLDAF - Announcements, Technical Support, Welcome Room
    • Welcome Room & Beginner's Corner
    • Announcements & Events Calendar
  • QLDAF - General Aquarium Discussion Forums
    • General Aquarium Discussion
    • Help with Fish Health, Diseases and Water Quality
    • Aquarium Projects, DIY Journals,
    • Ponds And Aquaponics
    • Marine and Reefs
    • Australian and PNG Natives
    • Articles & FAQ
    • Photography & Video Lounge
    • General Appreciation for members
    • Off Topic Discussion
  • QLDAF - Aquarium Trader / Classifieds (Wanted & For Sale)
    • QLDAF Live Stock Trader
    • QLDAF Aquatic Plant Trader
    • QLDAF Dry Goods Trader
  • QLDAF - Sponsors, Clubs & Societies -- Enquiries sponsorship@qldaf.com
    • Sponsor Sanctum
    • Clubs

Find results in...

Find results that contain...

Date Created

  • Start


Last Updated

  • Start


Filter by number of...


  • Start





Website URL











Found 15 results

  1. I remember a while back someone wanted to know where they could get oxygen bottles from without having a cig account Bunnings now sells them same system as the swap and go bbq bottles you buy the bottle then take it back when empty and trade for another pay your cash and leave
  2. Hi guys I was wondering if anyone knew where to buy and refill oxygen bottles. I know they are available at welding suppliers. Is there somewhere I can buy the bottle instead of renting it? I have heard micro brewing shops sell them, but never chased that up. Any input would be greatly appreciated Thanks in advance
  3. I have a large male electric blue in with about 40 other cichlids. The reason I'm concerned is that he is showing similar signs to low oxygenated water (constantly gasping for water/air.) apart from gasping he is fine, eating, swimming normal etc, this has been the case for about a week. The weird part is that he is the only one doing it, all the other fish are perfectly fine and happy. This one has me a bit confused, hopefully someone else a bit wiser can help me out Thanks in advance for your help
  4. Hey Guys - These days I don't have need for oxygen in fish bags, however when I was sending fish all over Australia I was using medical oxygen... I am going to pack a number of boxes of fish shortly and can get oxy welding oxygen from my bro but whilst I have read on forums that's what they use... thought I would put it out here and see what you guys think, is this ok to use??? Thanks Karen
  5. I've just gone and got an Oxygen bottle and wondered if I took it to the auctions would anyone use it ??? i hate to see fish in bags 12hrs + also I know some of you travel a long way im thinking $1 per bag 50c would go back for refilling and 50c to our club and let's face it $1 not much if the fish are worth $50+ your thoughts/feedback good or bad pls first auction 2nd Feb caboolture pls note both Qfas and Qcg (fish only) auctions will have a change of venue this year FJ
  6. Looking to buy an Oxygen bottle small med size 1st choice would be 2nd hand used one but if anyone can point me in the right direction of a new one that would be helpful FJ
  7. just looking to fill 4 or 5 bags with oxygen, willing to pay a few $, no shops are open(obviously) so i cant do it that way, can anyone help me out?
  8. Hey all, Does a lack of oxygen in a tank promote more algae growth? I was told the other day that the algae in my tank could be so prevalent due to lack of oxygen, however it doesn't make sense because Algae photosynthesizes right? So in effect if it needed low oxygen to thrive it would effectively kill itself off by producing it?
  9. hey guys, jus wondering if anyone is able 2 bag large fish with oxygen 2 transport on aae???? any help would be much appreciated cheers jeremy
  10. This is general question to see if any one else has the same problems. Does any one else have problems with their canister filters not producing enough oxygen and have to have a power head in their as well to produce enough oxygen for their fish just noticed it while my power head died last night
  11. G'day everyone I was hoping that someone could tell me if it is safe to use industrial grade oxygen for transporting fish? Or should I only use medical grade? Cheers Jono
  12. Hi guys, Went to an aquarium yesterday and noticed a setup with no air bubbles breaking the surface anywhere. I asked one of the staff how the water was being oxygenated, and they said it was via the high flow powerhead in the tank. They explained that in a natural habitat, the fish will be able to get whatever oxygen they need from the heavily-circulated water. They did also state that their more heavily loaded tanks were using bubbles, but for not so heavily loaded tanks, they are simply a decoration and nothing more. What are peoples' thoughts on this? I would like to know if there is anyone out there who is perhaps not pushing air through their tanks and how it's working out for you? Ryan
  13. Can anyone tell me where I can get a small bottle of oxygen suitable for shipping fish? Does it need to be a medical grade, or will oxygen from a acetylene torch suffice? thanks, Jason
  14. Oxygen consumption in the home aquarium is a frequent topic among fish keepers, but do you really understand what is going on inside of your tank? If you are a bit lost on this issue, you are in good company. It can be quite difficult to imagine something that you can't see, especially when the portions are so amazingly small. Can you really visualize just how tiny 7 parts per million is? We hope that the following examples will be of some help. Let’s say you have a 135 gallon tank that has been stocked with 5 lbs. of healthy fish. The water in the tank is kept at 79°F with the pH at 7. Like most people, you are a bit heavy with the fish food. Your fish are being fed 1% of their body weight per day (approximately 25 grams or almost 1/3 of a cup of dry food). Using long established formulas from aquaculture, this is how the math works out: Your 5 lbs. of fish will require 0.9 grams of oxygen per hour. This equals 21.6 grams of oxygen per day. These fish will produce 0.8 grams (several drops) of NH3-N per day. The amount of oxygen required by the bio-filter to convert this Ammonia to Nitrate and satisfy the requirements of the bacteria is 5.4 grams of oxygen per day. The total biological oxygen demand for your tank is 27 grams of oxygen per day. Now let us consider a simple source for this oxygen. Air stones are by far the least expensive and the most efficient way to aerate an aquarium. Aeration can take place in the tank, sump, filter or protein skimmer. It makes no difference where the oxygen is introduced into the system, just so long as it is present in sufficient quantities. A small, high quality air stone (1.5"x .75") will flow slightly less than 0.10 cubic feet of air per minute. Three (3) of these stones will add 1.8 grams of oxygen to the water per hour, 43.2 grams of oxygen per day. Oxygen saturation will occur somewhere between 6 and 8 parts per million (this number depends upon temperature, salinity and elevation). This means that the water molecules have absorbed as much oxygen as they can easily hold under the present conditions. Any oxygen taken in beyond this point will be released back into the atmosphere with the least amount of disturbance in the water. 75% oxygen saturation is common in the well aerated home aquarium, while 95% is quite difficult to achieve. Since your aquarium has an oxygen demand of 27 grams, and the air stones are providing an oxygen potential of 43.2 grams, there is no danger of low oxygen stress. Your tank will utilize and store only a certain amount of the available oxygen. And while it is true that you may have a tremendous amount of surface area in your biofilter, it is highly unlikely that the bacteria will utilize all of it. Remember, nitrifying bacteria are present in levels that are directly proportional to the bioload of the tank. It makes no difference to the bacteria how big your filter is. If they need only 10% of the surface area, that is what they will use. Approximately 80% of the tank’s oxygen demand goes to the fish, with the remaining 20% going to the bacteria for the nitrification of organic waste. In conclusion, your average fish tank is not consuming nearly as much oxygen to process the biological waste as you may have imagined. While this is understood by professional aquarists, it has taken some time for the information to reach the aquarium hobbyist. Both wet/dry and fluidized bed biological filters utilize the same amount of oxygen to process fish waste.
  15. Can someone run me through how to purchase/hire the cylinder/regulator etc that you need to be able to set up to ship fish with oxygen. Thanks in advance.
  • Create New...