Actually to think about it im sure 1/4 " would work,
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20 Gallon
20 lbs Fiji premium
20 lbs Caribsea Ocean Direct
AquaClear 50 overflow
Stealth 150 watt heater
26" Coralife Blue-White 10000K
Fish
1 Ocellaris clown, 1 Tomato Clown , 1 Royal Gramma
Inverts
1 scarlet hermit crab
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