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Brooke
I can't understand why some umbrellas close at night and some don't... Is this normal or not??? I tested for nitrate, phosphate, nitrite, calcium, magnesium, everything is normal... I'm really confused, is it normal for umbrellas to close at night, or do I need to look for problems in my aquarium???????????????
P.S. Everything is growing and smells good, but I really don't know about the umbrellas....................... Please advise....