you don't need it but its great to have. imo it's well worth the extra bit of money you spend getting it. you don't need the reserve tank but you should grab extra inserts and possibly a tds meter you so can see how depleted your inserts get over time.
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Given sufficient thrust pigs will fly just fine.
90 Gallon LPS tank - Challice, Acans, Favia, Diplo and Zoos
125 Gallon SPS Coming Soon!
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