Combinations for vitality

Answer from: Lilo
Red branches / yellow table
pile of rocks / yellow plateau

green and orange seaweeds to keep the brown seahorse interested, little clumpy ball of green seaweed for the green o e.

Answer from: cleocat
Vitality is merely an indicator of how well you are doing in the game. The icon is a pink heart found in the upper right hand corner of your home screen. Click it and you will find four pictures/categories with percentage numbers below each:
1. Plants
2. Rare Plants
3. Rare Fish
4. Guests

100% of course means you have max Vitality for that category. Any value less than that means there are more of those items to be found.

Answer from: Tanya
Violet Sea Blossom/Lilac Cirripathies/Marron Pipe Sponge
Grass/green seaweed
Brown Sea Grass/Purple Marine Shrub
Yellow table/rock
Yellow table/red branches
Yellow plateau/heap of rocks
Orange Bell Sea Pen/Orange Tube Sponge

Answer from: GreenFariy
Violet Sea Blossom + Lilac Cirripathies + Marron Pipe Sponge = Nemateleotris Decora
Giant Brown Grass + Purple Marine Shrub = Nemateleotris Decora
Red Branches + Yellow Table Plant = Chelmon Rostratus (Yellow Strips)
Giant Brown Grass + Flat Rock + Brown Seaweed Cluster = Chelmon (Brown Strips)
Giant Green Seabush + Green Straight Seaweed = ?
Yellow Table Plant + Rock = ?

Answer from: GreenFairy
Yellow Table Plant + Red Branches = Chelmon Rostratus (Yellow Strips)

Answer from: GreenFairyReef
Orange Sea Bell Pen + Orange Tube Sponge = Yellow Table Plant (Orange)

Answer from: Stmk1
Barrel sponges + silver branches + boulder

Answer from: More please
Giant Brown Grass + Brown Seaweed cluster + Flat rock

Answer from: mississippi2
Yellow small grass & yellow Bell sea pen & small Shell

Answer from: JoJo
@mississippi2: What is the small shell?

Answer from: Mrschmul
Lvl 22: orange heap of Seamoss + orange plateou plant + orange peel seaweed cluster / ingame name : mrschmul Add me

Answer from: samerrf
Barrel sponges(living) + white sea flower(ornamental) + mineral hedge(specials)