Mroak Posted January 8, 2018 Share Posted January 8, 2018 Hi reefers. I have a Fluval Evo 13.5 Nano. With live sand and live rock so the water volume is roughly 12 gallons. How much water should I be changing every week? 2 gallons? I’m unsure what percentage 2 gallons is on this size of tank. Thanks in advance Quote Link to comment
ninjamyst Posted January 8, 2018 Share Posted January 8, 2018 I change between 2-3 gallons weekly on mine. 1 Quote Link to comment
Clown79 Posted January 17, 2018 Share Posted January 17, 2018 10-20% is common. I do a gallon or so on my 10g, 3 on my 25g, 1 on my 5g. Quote Link to comment
benstatic Posted January 17, 2018 Share Posted January 17, 2018 On 1/7/2018 at 4:51 PM, Mroak said: I’m unsure what percentage 2 gallons is on this size of tank. 2 gallons water changed divided by 12 gallons total = 0.166666 . Multiply that by 100 to convert the answer to a percentage. 2 gallons on your tank is a 16% water change. that amount is right in line of the responses in the thread so far. Quote Link to comment
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