Fish dying from cold or rotten roots?

[XnSdVd]

From what i understand ICH is a fungus, it's all over the tank all the time. Your fish get it when they're weakened by poor water conditions. So dosing salt might be detrimental to your fishes immunity system.

Either way, what I do is remove all the bottom dwelling fish like loaches. Then I remove the shrimp a few hours later(they start coming to the surface). The gas will either dissipate into the air or your plants will absorb it within the day, after that it's quite safe to pop the little guys back in.

[Justikanz]

Ok ok... Err... Some corrections ah...

Ich is NOT a fungus. Ich is a protozoan, a parasite, at the best. Thing is, these fellas will always be around. Unless you killed them once and had NEVER introduced any new water, plants, borrowed aquarium gravel, borrowed filter media or fish since. They will infect the fish but as the fish's immunity can deal with them when the fish are healthy, we dun see an ich outbreak. Once the fish is stressed, overcrowding, a sudden drop in temperature or other water parameters, introduction of predators or agressive fish or constant rescaping, the ich protozoans have an opportunity to take over from the immune system of the fish.

The thing is, when the substrate is disturbed, it is normally the ammonia, nitrite and nitrate spikes that causes harm as they disrupted the water condition...