Chiller temperature setting

[williamng]

Guys

What is the temperature you guys normally set? Is 26 deg C good enough for CRS? If I am to set a lower temperature, does it means the chiller will kick start more often?

[kaym]

I do mine at 26 degree for my A grade CRS. So far alright, not breeding yet though.
If you set at lower temperature, chiller probably has to struggle more and probably kick in more often depending on the ambient temperature.

[salexjared]

Depends on what chiller you use.

If there is enough HP then there is no issue keeping a lower temperature of course it would kick in more often and cost you more.

I have heard suggestion that CRS like lower temperatures and common suggestion is <=24C. But does that mean that 26 cannot....no, someone has successfully breed the CRS at that temp but more difficult.

Keeping low temperatures has some issues like

1. Is your chiller sufficient to maintain it without working overtime
2. The condensation issue that will flow around and below 24C

I keep mine around 24-25C, once I go below 24, I have condensation and is unsightly. (unless you are in aircon room)

[williamng]

I got a hailea chiller HC-130A. I connect my Eheim Ecco 2234 to my chiller. Flowrate is about 500 litres/ hour. I set the chiller temperature to 26 deg C.

i) After 10 mins, the LCD panel shows 26 deg C
ii) Within the next 1 min or so, the LCD panel shows the temperature to be 26.4
iii) After 25 mins, the temperature shown on the LCD is 27 deg C and the filter start running. Is this normal? I feel the chiller is starting too fast.

Is there any way to resolve the above problem? Above is observation with my lights on

[salexjared]

I think the flow rate is too slow and the location of the temperature sensor in the reservoir is reading the cooled water instead of the real tank temp.

So you can either invest in a higher flow rate canister (which I do) or you can invest in a external thermostat (cost around 120)

[williamng]

My flowrate is already 500 litres/ hours which is higher than the recommended flowrate. Hmm...I wonder whether i should change my cannister. Anyway to find out?

[williamng]

Yesterday did some experiment with my chiller: -

During light on: -

1) Temp set at 25degC
Chilling period = 10 mins
Standby period (Chiller not running) = 18 mins

2) Temp set at 26degC
Chiller period = 10 mins
Standby period (Chiller not running) = 35-40 mins

3) Temp set at 27degC
Chiller period = 10 mins
Standby period (Chiller not running) = 1hr 10 mins

I will try to see what is the effect with lights off. Possible my tank water is too hot? Or could it be insufficient filter flowrate?