another.. probably irrelivant point, is that dyelight is a dye, glow bottles is a pigment.
a pigment is basically a powder base, a dye is a liquid base.
OCWC claimed the pigment powder killed his pump. but cmon.. SUPER fine powder killing a pump made to pump pond water?
my only requirements for a good UV additive is that i #1 glows, #2 doesnt stain the system. (obviously no hits to performance and all that...)
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