Emma Turner introduces a tiny goby that's capable of dramatic colour changes to suit its moods and surroundings.
goby the fish dragon of Sex
What is the other goby? I fed him a few blackworms and bloodworms and half an algae wafer every other day. There are also other shrimp species that are good food for the goby so I would say that helps the goby too. Not essential, but useful. Silica sand substrate, fake tree roots, rocks arranged into caves, java ferns and java moss, and Malaysian Trumpet snails to keep the sand stirred.
Cats work the other way, their eyesight is good in terms of detecting things in weak light, but they're not good at detecting colour or having the same sharp eyesight we do. According to the directions, the treatment involves 3 doses, 48 hours apart.