Hi all,
Good link.
Kristina don't add salt, it doesn't serve any useful purpose in the aquarium and is actively damaging to your plants.
Same with adding fish, find out a bit about them before you buy them. So for Loaches you need to ask "is it happy on its own?", "how big will it grow?", "does it like to dig?", "is it aggressive to other fish?". Go to a source that offers good advice, in this case there is a resource "Loaches on-line" <
Loaches Online - Community Edition — Loaches Online>.
Whether you want to run a very clean tank is up to you, but you need to remember that in most cases what you use to kill unwanted guests is much more dangerous than the guests themselves.
I'd suggest just syphoning out any thing you see if you don't like them. Personally I like as much life as possible, and I actively add
Asellus, Ostracods etc. but I understand not every-one is going to want to do this.
cheers Darrel