16 replies to this topic

[hammy]

Hi ,

recently i had a slight outbreak of nuisance algae in my tank. just measure my phosphate level with 2 testkit and both register neligible. introduce around 20 snails to control. It is still controllable but i am a sterile freak , hate even to have sight of algae =)

And a good friend of mine told mi by reducing the temperature will deter nuisance algae from spreading. Is it effective while i lower my temp and keep my phosphate almost 0 to kill the algae.

ya and of course my tank is overstocked .
thanks for the advice in advance!

[Vanquish]

The truth lies in that before your testkit can register a reading, the po4 has already been absorb by the nuisance algae to grow.... so as long as you see nuisance algae growing, there's abundance of po4... I've posted several articles on po4 before, so you may wanna search for them...

[weisoon]

Lower temp will result in slower coral growth.

[Vanquish]

Found the article for you.... read this...

[hammy]

Thanks Vanquish and weisoon for the reply.
Yup the link is a useful information =)

[Living_Stones]

And a good friend of mine told mi by reducing the temperature will deter nuisance algae from spreading.

Did he tell you why?

[hammy]

Did he tell you why?

nope .

have u guys came across Marc Weiss Algae Magic product ? It claim it eliminate algae by increase oxygenation and lowering temp does increase oxygen content within the system. Any link ?
really need expert input again .

[Acura]

Lower temp will result in slower coral growth.

as what weisoon has said, slow growth resulting from low metabolism.

low temperature, at best, will be slowing algae growth and not completely removing your algae problem. rule of the thumb still applies. e.g. pristine water quality, tank population, NNR methods, feeding habits, etc.

[aquabeanz]

well, i guess lowering the temp can be a complimentary method in removing algae isn't it? by lwering temp and getting some algae busters like snails, slugs, tangs to finish off the algae quickly and at the same time carrying out the other methods of removing algae like changing water etc can be a great combo!

[Living_Stones]

nope .

have u guys came across Marc Weiss Algae Magic product ? It claim it eliminate algae by increase oxygenation and lowering temp does increase oxygen content within the system. Any link ?

Don't know abt MW product, but if you google "phosphate release, marine sediments, temperature", you will find many links on the desorption of P in higher temps. Its one of those other things, besides lower pH and redox potential that causes the flux of P to be release or leech out from rocks and sediments.

It is a known fact. Lower temps holds in the P, and keeps it bonded in. It allows for more O2, and it just may be the last varible which we can easily control when compared to pH and redox.

[Living_Stones]

Lower temp will result in slower coral growth.

Some species will always have higher growth than others. Generally speaking, sometimes not. Growth rate per say is too wide to generalize with lower temps only. Theres been some rsch showing that lower temps may actually be better for growth in hermatypic corals. Besides revealing that they can tolerate a wide range of temps, growth optima was shown to be alot lower than generally conceived by most reefkeepers.

Another interestingly pointed out a misconception that the temperature of the water is not the same as temperature of the corals. Like the ambient temp isn't your body temp. It showed that darker corals (browned ones) have higher temps(by as much as 2ºC) than lighter similar corals. It argued that by keeping temps lower, you may actually be helping the coral...

[hammy]

Some species will always have higher growth than others. Generally speaking, sometimes not. Growth rate per say is too wide to generalize with lower temps only. Theres been some rsch showing that lower temps may actually be better for growth in hermatypic corals. Besides revealing that they can tolerate a wide range of temps, growth optima was shown to be alot lower than generally conceived by most reefkeepers.

Another interestingly pointed out a misconception that the temperature of the water is not the same as temperature of the corals. Like the ambient temp isn't your body temp. It showed that darker corals (browned ones) have higher temps(by as much as 2ºC) than lighter similar corals. It argued that by keeping temps lower, you may actually be helping the coral...

what is hermatypic coral ?
hmm... so by touching brown coral , generally u can feel the warmth of the coral ?

[Living_Stones]

Definitions of hermatypic on the Web:

reef building corals with zooxanthellae.
gmbis.marinebiodiversity.ca/BayOfFundy/glossE-H.html

Noooo. There are devices tt can accurately measure the surface temp of corals

[hammy]

haha... hermatypic is so chim but yet a simple thing ...
anyway whether lower temp result slower growth rate in coral is off topic , does it lower growth rate of plant , mainly nuisance algae.

[Living_Stones]

the definition is impt as it puts a scope on things... i.e. they're not referring to softies or LPS corals.

In some countries, during summer, rivers, lakes and estuaries suddenly have huge algae growths...

Oh its not the growth rate lah, it the release of P.