Can u have too much oxygen?

hawkfish203

Member
Im running 3 powerheads 2 250gph and a 700gph plus I have a hang on that adds some top of the water movement and on top of all that I have a airstone in there! Seem like too much is too much? Ive heard of fish dieing from not enough how bout too much? Haven't had any problems but ya never know. Was thinking of taking the airstone out seems like over kill. oh and this is in a 125 6'.
 

acrylic51

Active Member
Your blowing air bubbles into your DT with the air stone? No....never to much.......I did a experiment years ago.....way back in my begining days, and I use to run and double sump wet/dry with bio balls!!!!!!
Were talking 1986-87.....I had plumbed my wet/dry, with air fittings, in the bio ball chamber and would pump air with an air pump into the bio ball chambers.....I would then monitor with an ORP meter the affects on the tank.....Believe it or not the ORP numbers and such were significantly higher with air being pumped.....So no the extra agitation/air won't hurt....Air bubbles/air stones are a different story......
 

hawkfish203

Member
Yes a air stone. Well it all started when my skimmer broke and I had no top water movement so I put the air stone in there and never took it out. Kinda liked the bubbles in the back...lol But im thinking its about time to take it out it makes these little bubbles on top which in turn are causing a build up on my light. Its safe to take it out because the powerheads move enough water right? Scared about changing something when I haven't had a problem.
 

monsinour

Active Member
most people dont have a bubbler in their SW tanks as it causes problems. It should be just fine to take out the bubbler.
 

acrylic51

Active Member
The reason I mention airstones/bubblers, corals don't like that....Not exactly sure what your stock list is on your setup, but I'd remove the air stone/bubble.
 

slice

Active Member
I should rephrase my last post, I've never considered myself old, but I do, on occasion, admit to being quite experienced at being young.
 

aquaknight

Active Member
Quote:
Originally Posted by HAWKFISH203 http:///forum/thread/381327/can-u-have-too-much-oxygen#post_3320881
Im running 3 powerheads 2 250gph and a 700gph plus I have a hang on that adds some top of the water movement and on top of all that I have a airstone in there! Seem like too much is too much? Ive heard of fish dieing from not enough how bout too much? Haven't had any problems but ya never know. Was thinking of taking the airstone out seems like over kill. oh and this is in a 125 6'.
I will say you're a little under-circulated with 2 250gph heads and a 750, for a 6' 125gal. Do you have additional HOB equipment or a sump and return pump? I would say to ditch the 2 250's, and get 2 more 750's at a minimum.
IMO/IME running a air stone on a SW tank, is purely personal taste. At best, the air stones does increase salt spray/creep, perhaps leading to lower salinity if you correct with only FW top-offs. I don't buy them negatively affecting corals a great ton. Most corals come from tidal flat regions where the daily tide is measured in football fields, and are exposed to the sun/air for hours at a time. Secondly, even without air stones, thousands of people run HOB skimmers that pump lots of microbubbles into their tanks, with no effects. Perhaps a combination of bubbles and poor-circulation that allows the bubbles to collect on rocks/corals/etc, could led to issues.
In some situations, like a tank with puffers that should never ingest air, or if you're keeping sponges (Tree or Ball), then definitely don't run one.
But as the article states, it's virtually impossible to over-saturate the water. You would have to be injecting more then just air to achieve that.
 

hawkfish203

Member
Sorry im running 2 250 and a 1250 my mistake. Got the 700 in my 75. And yes I have a sump with a skimmer in it. I'm gonna take it out and see what happens I can always trow it back in if im getting adverse effects. Think the 700 in a 75 is enough? The 75 is my reef the 125 is a fish and live rock but I do have a anemone in there for the clowns. Let me know if any of this sounds off. Thanks again for the help.
 

bang guy

Moderator
If you have a skimmer you probably are already O2 saturated. There's very rarely an issue with O2 unless you're adding a chemical like Amquel. The issue is with removing CO2.
 
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