https://www.int-res.com › mepsPDFClams feed on phytoplankton. I have a bunch of frozen phytoplankton from the days that I breed clownfish so I decided to start to feed my clams. I keep my small clams in a bucket close to the surface in my lighted sump so it is easy to make an enclosure to keep the phytoplankton from dilute to the rest of the tank. Did this by cut out the bottom of another bucket. Since the bucket is tapper, wider on top so this work out perfect
Here are the clams without the feeding bucket on top. I actually took this picture after I feed them this AM
Feeding and clearing of Phytoplankton after 30 mins
I will be experimenting with the feeding regiments and will observe and see how my clams do with regular feeding.
This contraption is not perfect yet. There is a gap at the bottom so the phytoplankton can leak out. I will raise the clam bucket a little so the feeding contraption seal this gap, by pushing into the sand. This afternoon feeding there will be no gap. Will see how fast the clams “eat” the phytoplankton.
Contributions of phototrophic and heterotrophic nutrition ... - Inter Research
Here is a link to a fascinating study that supports the feeding of your young Gigas.
Also it states that scientist understand very little about the feeding habits of giant clams. This is why I never understood the absolutes when it comes to not feeding clams. Especially when I've read other study that showed they will often switch back and forth between food sources. Also they have the ability to descriminate between particulate organic matter as well.