carib sea

Got some leftover CaribSea dry rock up for grabs. All are new, just open box. All prices are OBO and does NOT include shipping, located in Bristol CT Reef Forest Kit with Arches - 125 Reef Forest Extension Kit - 80 Liferock Purple Flatz - 90 Liferock Shelf Rock - 110 Liferock Dry Live Rock -...

22g SW Office Nano Current Equipment List (Updated 4/18/23) 22g 35.5x12x12 Low-Iron Glass Aquarium Caribsea Special Grade Substrate, Caribsea LifeRock Nano Arches Neptune A2 Apex w/ EB8, FMM, WXM, & VDM Ecotech Marine Vortech MP10ES w/ RF Module (x2) AquaIllumination AI Sol Blue w/ Serial Data...

SOLD SOLD SOLD I have over 200+ lbs of Carib Sea reef rock. 4 reef tree kits with extra arches. Most has been used but i have pressure washed it all and let dry out. This is for pick up only as im not shipping rocks. FCFS For Sale Due to moving out of state i have broken down my reef tank and...

Red Sea Reefer 250 G2 Aquarium 55 gallons - 36"L x 20"W x 21"H with 1/2" glass Sump 10 gallons - 19.2"L x 17.5"W x 13.5"H 3 gallon Stock ATO Reservoir Return Pump Sicce Synca Silent 4.0 Powerheads Red Sea Reef Wave 25 Gyre Icecap 2k Gyre (from old tank) Lighting Kessil AP9X & Mounting...

I found this black stuff on a new piece of CaribSea South Sea Base Rock (it came out of the box a few days ago and has never entered my aquarium). It does not scrub off and appears to be encrusted on the rock. Should I worry about it?