what is the water temp ?

[kelvin70]

If you are working on a budget, I recommend Hailea, but wow for a 4x2x2.5 you are looking at a 1/3 HP or bigger chiller.

hi bro, will go for the budget one ...Hailea 1/5 hp...

[[V]tEc]

hi bro, will go for the budget one ...Hailea 1/5 hp...

1/5 might be too small for ur tank size.....min also at least a 1/4 liao......my 3 2 2.5 already using 1/2hp. overkill always better than underpowered.

[yongshun]

hi bro, will go for the budget one ...Hailea 1/5 hp...

bro, tat will be too small for for ur tank, im using a 1/4 for my 3x2x2 and i find that it is just sufficient for me

[Achilles Tang]

Higher temps increases the toxicity of waste materials. Also brings reduced oxygen levels. It also makes the metabolic rates of livestock increase. All bad.

It's possible but not recommended. It's a fine balance but a slight tilt could crash the system if lets say your pumps overheats or your MHs stay on for a long time.

[kelvin70]

Higher temps increases the toxicity of waste materials. Also brings reduced oxygen levels. It also makes the metabolic rates of livestock increase. All bad.

It's possible but not recommended. It's a fine balance but a slight tilt could crash the system if lets say your pumps overheats or your MHs stay on for a long time.

so which model suitable for my tank ???

[kelvin70]

Higher temps increases the toxicity of waste materials. Also brings reduced oxygen levels. It also makes the metabolic rates of livestock increase. All bad.

It's possible but not recommended. It's a fine balance but a slight tilt could crash the system if lets say your pumps overheats or your MHs stay on for a long time.

Hi Achilles Tang, so is it the best to invest a chiller ? to keep the temp low 28'C ? currently my temp shot up to 30-31.5'C and what hosepower chiller should I use ? look for the buget one ?

[RockyBoy]

so which model suitable for my tank ???

You can use this to gauge your chiller power size...

JBJ chiller calculation

I think around 1/2HP can already..

[Achilles Tang]

Hi Achilles Tang, so is it the best to invest a chiller ? to keep the temp low 28'C ? currently my temp shot up to 30-31.5'C and what hosepower chiller should I use ? look for the buget one ?

31.5C is very scary....

You really ought to try using a fan at least to increase evaporation if you can't afford a chiller.

[Fuzzy]

Hi Achilles Tang, so is it the best to invest a chiller ? to keep the temp low 28'C ? currently my temp shot up to 30-31.5'C and what hosepower chiller should I use ? look for the buget one ?

For your tank size, you should consider the Hailea HC-500A. 1/2 HP, you will probably need the power since your temps can reach as high at 31.5C.

Or if you really can't stretch your budget that far, use Fans and a HC-300A together.

[kelvin70]

For your tank size, you should consider the Hailea HC-500A. 1/2 HP, you will probably need the power since your temps can reach as high at 31.5C.

Or if you really can't stretch your budget that far, use Fans and a HC-300A together.

to all bros , think will go for hailea HC-500A Chiller, anyone use this model ? it is good ?

[Fuzzy]

to all bros , think will go for hailea HC-500A Chiller, anyone use this model ? it is good ?

Seldom hear of problems with Hailea chillers, its the most reliable china brand. They also OEM manufacture chillers for some US / European companies.

Those companies just rebrand the chiller and mark up.