theres actually a few reputable companies that go out and collect it at the right times (which is where the lfs gets it from

) but to get it delivered to your house they charge around $80-100 per trip no matter how much u get, so unless u have a resivour it isnt worth it so i just get it from the lfs down the street when i do my bi weekly water changes

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125g Reef 72x18x22 - 250w mh's, MR-2 skimmer with panworld 150, Koralia #3 & #4,
Phos reactor/rowaphos, ATO, DIY overflows, DIY 55g sump with fuge...
300g back in the works!