Your best to buy new bulbs, old bulbs are not very reliable.
Even if you are told they are only used 3 months, you have no way of really knowing.
T5 bulbs last 8-12 months only, then the color shifts and it is then not a healthy bulb for your reef.
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“When I die, I want to go peacefully like my Grandfather did, in his sleep -- not screaming, like the passengers in his car.” ”
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