The orange drops turn blue in the water. You shouldn't use tank water (use 4dKH like someone mentioned).The bottle of "CO2 test" is orange not blue at all like the vidies I've seen.
I thought the "CO2 test" bottle was the 4dkh water. I really don't feel like waiting on the mail again.
Is there anywhere I can buy a all-in-one liquid to pour into this thing?