So I did a 50% water change less than 12 hours ago. I've noticed this evening my fish are breathing particularly heavy. Also, the BW tetras were hanging out at the top gasping for air. I've even noticed my clown pleco coming up for air a couple times!
ammonia 0-0.25 (which I've determined is from the tap water)
nitrate 10-20 (!!) I listed parameters this morning here: http://www.tropicalfishkeeping.com/f...-so-far-72013/
and for this recent water change I followed Byron's advice about shaking bottle #2 for 2 minutes so I'm at a loss...
Attached are pics of aquarium as a whole: is this not planted enough?
Also, I've raised the spigot of my outflow from the canister filter up a little bit for a little more water agitation. The manual said not to have the thing fully out of the water.
As I'm typing this my BW tetras are practically water-skiing along the surface gulping air and my cories are going nuts (up and down). Please help! :(