Clams in Refugy??

[tanker]

I have a 15gal refugy. It has only LR and lots of caulerpa. If I wondering if I could put a clam or two in it (I have some clams in my main tank). It now has only 20watts of PC but I can upgrade to either 40 or 62watts. But my concern is the flow, I have 350gph flowing through it. Would this be OK?? Also the lights will be on 24/7.

[brianlena2000]

Would this be OK??

Even with those lighting upgrades that won't be enough light for a clam.

Also the lights will be on 24/7

24/7 lighting would be stressful for clams.