I believed this to be true also until a couple of weeks ago a mate of mine bought a brown squamosa from an LFS and when I saw his tank a couple of days ago, it had changed to bright yellow with a teal rim. I also bought a brown squamosa recently and although the colour change wasn't huge, it did change from brown to purple/pink/blue.brianlena2000 said:Unfortunately, clams are not like acros. They won't change from brown to purple etc. The colors you are seeing on that particular clam are it's natural colors (assuming it is healthy).
It's not actually the zooxanthallae that give clams (or corals for that matter) their brilliant colours. Zooxanthellae are golden brown but the hosts (whether coral, clam, nudibranch or whatever) produce other pigments that have different purposes for different hosts. Daniel Knop has a few interesting theories to the colours and patterns produced by tridacnids in his book.ADS said:I agree w/ firechild. Clams have the ability to manipulate their zooxanthallae. I have seen squamosas intensify their lines and change from brown to gold w/ proper lighting. Adam
I wish I had a buck for every time someone asked me this question!peterlin98 said:Gary,
What is the name of the fish in front of T. Squamosa? It looks like a wrasse, but spotted.