You have a 150 with six slots of live rock and two frags. Everything grows in real time, up to eight
hours while you are away — nothing is ever lost and nothing dies.
Tap a coral when its ring closes and the READY tag appears: you sell that colony for credits
and the slot frees up.
Tap an empty slot to plant. Higher tiers need equipment first — montipora and acropora want
light 2, torch and goniopora want light 4 and a doser.
Credits buy corals, equipment and rock. More rock is more slots: six up to twenty-four.
Phosphate rises with every fish you keep. Past 0.15 algae takes slots and growth halves.
A water change costs 50 credits and drops it 0.05; a skimmer slows the rise; scrubbing is free (one patch
per tap) and a cleanup crew eats it for you.
The strip is your ladder — eight tasks, each paying credits the first time you meet it.
Progress saves on this device. Leaving and coming back is the intended way to play.