Help with Clams and Lighting


New Member
View Badges
Apr 12, 2021
Reaction score
Review score
+0 /0 /-0
Pardon the unfamiliarity, my grandma gifted me some smallish (2-3 inch) pismo clams that she had bred in her tank, in hopes that I could raise a few of them on my own. She recommended quite a bit of heavy duty lighting equipment, but I'm tight on money and was wondering if there is a way I can do right by these clams with what I have available. I read online that some strong LEDs will work in place of halidaes, and I have a quite strong Ott lamp that I figure will do the job, but my questions are
1. Will this light even work as food for their symbiotic algea bits?
2. I read some folks online "feed" their clams with light for 12 hours at a time, but I also read that clams need a slow adjusting period to light. Is it dangerous to go from bright light to near complete darkness in between these 12 hour cycles?

(I'm not trying to eat these guys, just wanted to raise some little friends)


Active Member
View Badges
Feb 14, 2021
Reaction score
Review score
+0 /0 /-0
clams are photosynthetic, they need light to survive, clams like very strong lights. They are also filter feeders, so they can benefit from phytoplankton, but light is their main source of food. I have mine under 8 hours of MH lighting, not many people keep their lights on for 12 hours since that would fuel algae growth. (LED's will work but someone else will need to recommend that for you). Sorry, but if your light is inadequate, it will die in a few days.

EDIT: Sorry, not sure if this applies to pismo clams. good luck
Last edited:
Upvote 0

What is your most favorite type of shrimp for your reef tank?

  • Peppermint Shrimp

    Votes: 18 4.0%
  • Banded Coral Shrimp

    Votes: 40 8.9%
  • Snapping or Pistol Shrimp

    Votes: 41 9.2%
  • Harlequin Shrimp

    Votes: 41 9.2%
  • Scarlet Skunk Cleaner Shrimp

    Votes: 137 30.6%
  • Blood Red Fire Shrimp

    Votes: 96 21.4%
  • Sexy Anemone Shrimp

    Votes: 30 6.7%
  • Camel Shrimp

    Votes: 1 0.2%
  • Other (please explain)

    Votes: 10 2.2%
  • NO shrimp in my tank

    Votes: 34 7.6%
Champion Lighting & Supply