Hi-Par Understorm Manual Dimmer has_variants Terra Aquatica CalMag Supplement is

Terra Aquatica CalMag Supplement is a fully soluble product that aids in preventing common growth problems

This is an affordable

Agitate water slightly for even distribution

Outdoor : For outdoor plants apply at half strength

Nitrogen supplied in 100% nitrate form for strong healthy growth over long periods

Hi-Par Understorm Manual Dimmer has_variants Terra Aquatica CalMag Supplement isThe Hi Par Understorm Manual Dimmer is compatible with All Hi Par LED fixtures. The Hi Par Understorm Manual Dimmer operates in 10% increments. A single Hi Par Understorm Manual Dimmer can control up to 10 daisy chained Hi Par LED fixtures.