Quote:
Originally Posted by FishyFishy!
How much live rock do you have in it? It could very well be taking up a lot of water volume inside the tank.
My 210 probably only holds 150 gallons of water with all of my live rock in there.
Oh..and internal or external overflow?
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Very good explanation rock can displace a large volume of water
Half my 95 gallon tank is taken up by rock so at best I might have 50 gallons in it