Importance of oxygen in the water

  • We are currently upgrading MFK. thanks! -neo
Eheim makes an air diffusing attachment for output of the 2217 model which I've been using for a bit. I'm not sure how effective it is, and information seems a bit difficult to find anything concrete but it might be something you might consider DIY if you wanted some peace of mind. That said, it certainly does add bubbles I'm just not actually sure how effective it is vs how effective it would be on a tank that large. Just a random idea.
 
terrible story- but Charney Charney and I discuss this all the time... I think to often we discount the importance of over oxegenating the tank and assume minimal breaks in the water surface are enough to handle the demands of our animals... I personally now run multiple air sources in all my tanks after having lost a few Psuedas to low o2.
 
If he had a fluidized bed media, is it possible the bacteria in the media used up all the oxygen faster than it could be replenished through gas exchange?
 
Wonder if this would have happened with a UV sterilizer working at level 2 sterilization??? I've always been told that one of the biggest benefits of UV is more O2 in the system since the UV is nuking all the little stuff that can rob a system of O2.

I've always been a firm believer in over killing the air. On my big system I run a pondmaster AP100 on my filtration (and use it all) then use a Jehmco 60 just for the diffusers in the tank...... I think it pencils out to over 200 lpm. Then 220 watts of UV on top of that.

I've always wondered why I don't see venturis used more on tank returns. For what they cost, and what they do, it seems kinda silly not to be running them on tank returns..........
 
  • Like
Reactions: rooto56
If he had a fluidized bed media, is it possible the bacteria in the media used up all the oxygen faster than it could be replenished through gas exchange?
well while it certainly is possible, that would mean he was highly overstocked as well if his bacteria population used up enough O2 to suffocate the stock, which in turn goes back to not enough surface agitation regardless.
 
  • Like
Reactions: MHDevelopments
I don't know guys, I can't believe that this happened just because one air pump shut down...
Filtrations has been running right? I believe that we are talking about Mike from Germany, right?
One question for all of us...how are u guys prepared if we go sleep at night and than during the time power electricity will shut down? Now what? We are sleeping like a babies and our expensive fish are without air stones, filtration...let's say we are sleeping for 8 hours..will all die? What we can do? Do u have any good advice? Thanks
 
i think the air is very important and ive said many times that when my rays dont eat as well as usual the first think i look to is the air pumps / air outlets being blocked. i clear the outlets and the rays are fine again.
its possible that the rays have been breathing heavy for a long time and it was just considered normal in that tank but then when the pump went out that was a straw too much and affected the system too much (probably affecting bacteria too).
did the guy even have a sump ? i doubt this would be much of a problem on tanks with sumps. i have one heavily stocked tank with a sump and i dont worry about the o2 too much there but a much larger tank i have regularly gets the air pump outlets blocked and i notice it there ( they are cleaned at least once a week to clear potentialy blockages ncidently however they still happen due to the location).

i would be interested to know more though just so that i can hopefully learn something. if anyone has a link i would be interested.
 
If he had a fluidized bed media, is it possible the bacteria in the media used up all the oxygen faster than it could be replenished through gas exchange?

this is one of the arguments on why K1 needs so much air

terrible story- but Charney Charney and I discuss this all the time... I think to often we discount the importance of over oxegenating the tank and assume minimal breaks in the water surface are enough to handle the demands of our animals... I personally now run multiple air sources in all my tanks after having lost a few Psuedas to low o2.

I absolutely agree. I think a lot of our unexplained losses are due to oxygen. I definitely do not think we give it enough thought. Oxygen levels fluctuate and short stints at low levels can kill lots of fish.
Hope this is not against the rules but here are some informative reads written by hobbyist on the topic
http://www.planetcatfish.com/shanesworld/shanesworld.php?article_id=313

http://plecoplanet.com/?page_id=829
 
  • Like
Reactions: UnstoppableJayD
I don't know guys, I can't believe that this happened just because one air pump shut down...
Filtrations has been running right? I believe that we are talking about Mike from Germany, right?
One question for all of us...how are u guys prepared if we go sleep at night and than during the time power electricity will shut down? Now what? We are sleeping like a babies and our expensive fish are without air stones, filtration...let's say we are sleeping for 8 hours..will all die? What we can do? Do u have any good advice? Thanks
This is the one situation we all dread as fish keepers (not just rays) there are ways (expensive) of dealing with this. Personalloy i have a leisure battery and inverter ready to go. Just enough to run the return pump and air pump for around 4 hours hopefully. As for it happeneing in the middle of the night? I was caught a few years back just after starting up my tank. The light unit on the tank tripped which took my whole tank out. I knew something was wrong because i happened to wake up and noticed the alarm clock next to my bed was not working. Nowadays, EVERY TIME i wake up in the night and roll over, i look at my alarm clock!! If it is not on, i know something is up. It's never happened again though and hope it never will!!
 
MonsterFishKeepers.com