If you search this (Biocube LED Retrofit SB) on Youtube you will find a retrofit for the 29gal. Personally I would use the larger standard black box light in place of the sprite he installs. If you have a Apex you can control the light through that or get a timmer or wifi model. It will easily keep SPS, have a similar light over my Reefer Nano currently for the last 8 months.
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