Eclipse 3 37 gallon

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Openbrain

Aquarium Advice Activist
Joined
May 9, 2012
Messages
156
I have a friend whom has an eclipse 3 and she hasn't changed her light bulbs in awhile. Also she wants to take the crushed coral gravel she has in there for some reason out.

Questions:

What size is the light bulb? It's fish only. Is it possible to change the gravel out while the fish are in the tank?
 
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