Too Much of a Good Thing?

Last night I did my 50% water change, but I got distracted, and it ended up being more like a 75% water change (the picture was taken after I had added quite a bit of water). It actually got low enough that the filter pump went dry and stopped circulating. I was a little worried about shocking the fish, so I actually added a trickle out of the hot spigot to try to mitigate any temperature change.

After the refill and the room lights were turned off, I began to sprinkle food pellets in hopes that the golden kuhliis had something to eat, and as luck would have it, I was able to see two of them swimming around just like they did when I first got them (hopefully not out of distress). I can only hope that there were four more alive and well, reluctant to come out of their nest for whatever reason.

It hasn't ever been exactly quiet since I hooked it up to my CO2 reactor, but I'm noticing how noisy the pump is lately. I also spotted quite a bit of green spot and other brown algae in the tubing closest to the lights, so I will consider replacing it with opaque tubing in the future.

Speaking of the CO2 reactor, I also bought some suction clamps from PetsMart today to replace the tropical fish veggie clip I had been improvising with. Much cleaner look, even if the C-clamps are not tight on the tubing.