Amonia, Nitrates, Etc...

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Jfitz

Fire Eel
MFK Member
Aug 12, 2007
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Montreal
Hey guys, kinda new to fishkeeping and just wondering how to check for things besides Ph in the water, a couple of my angel fish have died now without a scratch on their body so im just wondering if it's something in the water thats killing them...
 
Buy a test kit from your LFS
 
umm, well i got my tank last summer, so about a year old.
I just bought a discus so im increasing the temperature to about 83 degrees.
Also wondering if its a bad thing if the fish opens its mouth when it breathes?
 
The higher the temperature is in the water, the less oxygen... try oxygenating the water more if you are going to have high temps.

Fish will visibly breathe through their mouths and go to the surface when oxygen is low or heat is too high.

Oxygenating the water does not have to mean adding and airstone... All you need is to break the surface tension of the water to allow oxygen to pass into it. You can do this by directing a spraybar at the surface, or the outlet of a powerhead or pump.
 
if my filters like a water fall type thing would it work by lowering the water level so it would "Break the surface tension"?
 
yes that would help, also are you doing weekly water changes? i have one filter that is like a fall and it makes bubbles.
 
ya i pretty much do it every saturday, im going to try to lower the level so it can make bubbles and save a few bucks on one of those bubble machines lol :D
 
Airstones that make bubbles dont actually put "air" into the water through the bubble's themselves.. well they do dissolve some air that way but very little. The main oxygen exchange happens through the surface of the water and the airpump basically pumps fresh air into the hood of the tank and circulates the water. The water sticks to the bubbles as they climb to the surface creating circulation to the surface where the exchange takes place.

so yeah your "waterfall" type filter will be fine... its probably fine as it is without dropping the water level. as long as theres not a "film" or thick layer on the surface thats stopping the exchange from happening. If there is a greasy film on the surface, then dropping the water level to create more of a dramatic waterfall will help things a lot.

If a fish dosent have enough oxygen it will breathe rapidly and deeply and usually go up to the surface where theres more oxygen likely to be dissolved in the water. They can also breathe rapidly if stressed out, so it dosent always mean its oxygen causing it.
 
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