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Ulcer Swab
and affordability
EHEIM Professionel 4+ External Filter 600
For aquariums from 120L to 250L
FritzZyme 9 Saltwater Nitrifying Bacteria Select:32oz Ulcer SwabFritzZyme 9 contains saltwater specific strains of live nitrifying bacteria proven to reduce fish loss due to toxic levels of ammonia and nitrite. Nitrifying bacteria can take weeks to naturally establish colonies in new aquariums while ammonia and nitrite can reach lethal levels in only a few days. FritzZyme 9 provides the proper balance of bacteria proven to rapidly seed biofilters, greatly reducing the natural cycle time allowing for safe,
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