Ive got an RO but its also used for drinking water and mixing to soften city water for breeding freshwater fish. Got into saltwater later on and just started with it.
same as bullets, used to buy the bottles but was going through 4-6 a day. and quite a few places ended up with more than a bit of ammonia in their "RO" from overdue filters.
got a 4 stage 100gpd for 250 bucks, but the 75gpd membranes give lower tds in their product, usually dont need to bother with a DI then.
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Joshua
BioCube 29, Nanotuners 150w hqi/pc refit, LED refugium, MCE600, Tunze 6025.
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