Seachem Flourish Potassium Size:8.5oz The intensity of the red

The intensity of the red coloration in well-conditioned males is extraordinary for a fish of this size

Water Hardness: Does not affect water hardness — inert

A floating ring keeps it skimming the exact surface level even as water evaporates

and other aquatic animals

Slate Pleco (Pseudancistrus genisetiger) has a slate-grey to dark body with subtle patterning — a clean

Seachem Flourish Potassium Size:8.5oz The intensity of the redSeachem Flourish Potassium Seachem Flourish Potassium supplies potassium (as potassium sulfate), one of the three major macronutrients (the "K" in NPK) and one of the most commonly depleted in a planted tank. Many comprehensive supplements including Flourish itself don't carry enough potassium for a moderately to heavily planted tank, which is why a dedicated potassium bottle is so often the missing piece. Where It Fits: Reach for Flourish Potassium