floaters

Are there any floaters that don't populate too quickly and are very hardy? My tank is 200l, I would like a small portion of the water surface used. My water is around 7.5 pH, I dont know what the gH or kH is, test strips don't help. The light is on for 8 hours. I don't use fertilisers or co2.

My tank currently had 5 corys, 2 otos and 7 neon tetras. Added a dwarf gourami a couple of days ago, a surprise gift from a family member who found out I had the tank, and thankfully it seems it's a good match for all the other fish. However, I had water sprite and some other plant I don't...

I have some volunteer duckweed? It's looking beautiful but what is this on the roots?

HI everyone! I have been adding floating plants to every tanks I have lately and been wonering if it's possible for betta to suffocate due to lots of floaters cover the tank? My betta tanks are covered in duckweed and water lettuce right now, there's no problem but I kinda worried it happens.