Using fan

[plant talk]

If I using a fan at 45degree in a 2by 1.5 tank.How many percent water of water do i need to replace in 3day?

[juggler]

Hi, I guess it varies.

Other factors to consider:
- how long your fan is turn on;
- heat from your tank lighting;
- outside temperature;
- humidity; and
- if there's a breeze coming in from outside.

Best is to turn on the fan and observe yourself. Top up water as necessary.

For my 5ft tank at home, I top up probably 20L or more of water a week. I have 2 DC fans cooling it. Another 3.5ft tank in my office needs no top up as it is covered and cooled to 24C by the air-con.

Cheers!

[tawauboy]

on top of what juggler has mentioned, the fan speed plays a part as well.
you'll need to try it out yourself. prepare a big watre container, 2-3 litres, to top up your tank.

[plant talk]

how many 6in fan do I need for 2 ft tank?

[fisherw]

Make a small mark with a marker pen at one corner of the tank at the water level. Top up to the level. Use the same mark for your water change. No guessing required.

[torque6]

For a 10L tank, with a 9cm fan running 24/7 at 9w. I have to top up 500ml per day.

[plant talk]

For a 10L tank, with a 9cm fan running 24/7 at 9w. I have to top up 500ml per day.

Will try it out after finish cycle the tank

[dnsfpl]

i top once my rain bar is not full submerge

[plant talk]

i top once my rain bar is not full submerge

Something like 4-5 day lost 30 percent water?

[dnsfpl]

lose about 1/2cm which is app 1 litre of water everyday

sometimes i top everyday but will scope up the surface water(10&#37 once or twice a week(water change)

[torque6]

Something like 4-5 day lost 30 percent water?

around there. i used 3.5 litres of top up water per week.

[plant talk]

around there. i used 3.5 litres of top up water per week.

THanks for the info, Will take this as a guide.