I work for a Zoo Shop in Sweden and encounter ignorance all the time :) (no hard feelings)
I have had and still look after SW tanks and I can tell you one thing;
The only thing I can find similar to the FW Plant tank is the lights and the circulation. But when it comes to other things like...
What about vinegar??
I have to clean mine and have no clue what to use?
Easy Carbo, vinegar or bleach? Or all 3 at once?
What about shading the diffuser so it doesn't get light??
I was thinking to place a black plastic peace 2-3cm over it... did anyone try this before?