[APD] Are all GH tests red/green?

[Jerry Baker <jerry at bakerweb_biz>]

Being that I am red/green colorblind, Tetra's GH test kit is useless to 
me. Are there any GH test kits that do not change from red to green or 
vice versa? The KH kits works for me just fine, but the GH might as well 
change from clear to clear.

-- 
Jerry Baker
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