Bacopa Caroliniana? And Anachris?

Anacharis will grow extremely fast. In my experience, Bacopa tends to grow a little slower, but still relatively quickly.

Both are fast growers IME, but nothing can keep up with Anacharis.

Anacharis can be compared to the blob, it will slowly take over any aquarium, home or town if left unchecked within a matter of days

soil substrate, ei dosing, pressurized co2, and a high level of light and both of these grow inches a day.

But i never could get anacharis to grow in plain gravel.

Both a relatively hard to kill. In a high tech youll be busy trimming it and in a low youll be barely keeping it alive. Good medium plants.

Thanks the info has been very helpful. If anyone else has experience with these 2 pleasse post it here. I am still interested to hear some more input. I am using Excell for carbon and seachem ferts with ecocomplete substrate with Root Medic root caps my lighting is lower end of medium.