oxygen

I have a bubble wall in my aquarium and I was wondering how to get MORE oxygen in my tank, other than live plants. Should I put in another bubbler, like an air-stone and have them run at the same time? My little cories just don't seem to be getting enough oxygen. I also keep my filter running...

Hi all. I’m new to the fish keeping hobby, I’m from uk. We bought a 40L tank from a pet shop, cleaned tank, gravel and plastic plants etc, installed filter and heater set at (25 degrees Celsius)that came with the tank, filled tank to the water level marked on the filter, we added tapsafe and...

Hi all, sorry if I seem to be posting too much. I ended up returning the females and got 3 male cobra guppies instead. Just wanted to know if it's normal for the guppies to stay at the top of the tank? They aren't motionless, but they do swim around a lot but don't go deeper, always staying near...

I really need someone to respond to this post asap!   I had an issue a month ago where i had foamy bubbles forming on the surface of the water, and all my fish seemed to be struggling to breathe. Now the bubbles are back in a much more mild form, yet my fish are all breathing ridiculously hard...

Please help... My Giant Gourami is having difficulty breathing. She seems to gasping for air, and recently has not eaten much for a few months now. She also seems weak, not moving much starting from yesterday until today. I just tried a water change and added an additional oxygen pebble. Is it...

I had an over hanging filter for my 55g tank, but it was pretty loud so my dad bought a fluval. I asked him to grab a powerhead too, but he used to raise freshwater fish and therefore disliked them and didn't buy one. I set up the fluval-rinsed it all well-and started it. I noticed that it was...