halide

plural halides

1. chemistryAny salt of any halogen acid (such as hydrochloric acid, hydrofluoric acid, or hydroiodic acid).

   sulfur halides such as disulfur dichloride

   1. especiallychemistrySuch a salt with a single halogen atom.

      Potassium iodide is a halide.

2. The anionic form of a halogen atom (a group 17 element).

   Iodide is a halide.

3. informalA metal halide lamp.

   Yes, heating is a problem with basically any reef set-up in the summer in a non-ACed house, and halides make it worse.

   1996 November 12, Sanjay Mani, “Jeff Pfohl's Web Page”, in rec.aquaria.marine.reefs (Usenet), archived from the original on 01 Jul 2026

   2 more examples

   One word on halides; They may be more expensive to set up, but they are far brighter than tubes, illuminate a larger growing area, and are much cheaper to run in the long run in terms of the light ouput you get/ unit of electricity consumed.. also an advantage for taller trees, or anything over 10 " tall..

   1995 September 18, ISLAM, YASSIR, “grow lights..”, in rec.arts.bonsai (Usenet), archived from the original on 01 Jul 2026

   I've also heard blue lights for an hour then kick on the halides for 6-8 hours then blue lights (actinic) again for an hour then the moon lights/no lights.

   2006 June 10, Bryan Garner, “setting timing on the new lights”, in rec.aquaria.marine.reefs (Usenet), archived from the original on 01 Jul 2026