Aaron S

Congo tetras in a tank with an Oscar... Good idea or bad idea?

@Colu, columnaris... Even if there are no lesions on the skin? Water parameters are pretty good. No ammonia or nitrites. I battle nitrates because they're 30 PPM coming out of the tap from the well. With plants and water changes, I'm able to keep them right at around 30. Everyone else is doing well. No bullying. I never see the least sign of aggression, even around food. Pigment loss has been progressing for about 2 weeks.

It's the colder weather. Plants would decrease evap. Warmer air can hold more water... This, "relative humidity." Lets say the humidity outside is 60%. That air, and all the water it's holding comes inside and gets warmed up. That relative humidity drops. Meaning, it can take on more water easily. The humidity in your home has remained stable by taking more water out of your fish tank. Maybe you've noticed, though house plants grow less in winter, they need more frequent watering for the same reason as your tank levels are going down faster.

Good chance you're good to go. If you're concerned, grab some filter media or swap it into your quarantine tank. In other words, import the cycle from show tanks into the quarantine tank, and you'll be solid.

3-4 weeks after ich outbreak (primarily affecting loaches, never seen on riselines)... This Roseline shark is losing more and more of it's black pigment, in splotches. It's back pigment is darker or missing. The black midline is missing in segments. Behavior is normal. Eating enthusiastically. Skin surface looks healthy. All other riselines normal. What?