goes back to breeding as well. get a discus from bad breeding and it wont come close to anything from a decent breeder...BYB vs hans. nice knowing theres other discus keepers here
And your welcome to ignore me, all good and well, but my information is correct from my research and experiance and it is your choice, your actions to do when it comes to your fish. as a public forum, i was giving an opinion.
Water changes wont stressfish, actually its like a rain or drought, new water coming in, as long as the temp is fluctuated greatly, which can be resolved via warming the water before putting it in tank.
whenever you add fish to a tank, it will add to bioload, and then the bacteria will have to catch up and so there may be a nitrite/nitrate spike. hence why you dont buy a ton of fish at once, you get a few at a time.
low levels of nitrates are normal, under 5ppm is nothing to worry about. nitrites and ammonia is bad.
you also have to keep in mind the amount of stress they go under from importing and then thrown into tanks, being netted, sloshed around in a bag on the way home, then introduced to a new place.
live plants help any fish tank, mosses and java fern/anubias are low light plants that require no nutrient supplients other than maybe column, but they wont suffer without additivis. but they will work like filters and help the water quality.
and ick is like the flu, its always there, just something makes it comes out.