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Old 11-04-2013, 03:07 PM   #1
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I'm thinking about getting a 300 gallon aquarium how many pounds of live rock should I put in and how often should I change the water and how many gallons should I change

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Old 11-04-2013, 03:32 PM   #2
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A general rule is 1 1/2 to 2 pounds per gallon. 1 1/2 for porous rock like fiji or 2 pounds for denser rock like atlantic. Water change say 20% so about 60 gallons

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Old 11-04-2013, 04:35 PM   #3
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I have a 210 with 40 gallons in the sump so 250 total. I change out 35 gallons every other week and have roughly 300 lbs at least of rock in my tank. Water changes depends on your feeding habits, stocking and filtration equipment. A good skimmer is a must in a tank that size because you'll likely have large fish that poo a lot like tangs, triggers, etc.
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Old 11-05-2013, 12:40 AM   #4
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I have a 240 with 60 gallon sump so 300 and I do 50 gallon water changes every two weeks.
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