reef temp
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jonthefishguy
Active Member
77 degrees
perfectdark
Active Member
About 80+ or - a degree. Fluctuation is more important IMO, night to day swings should be minimal.
jonthefishguy
Active Member
if you start at 77 a degree or two up wont be so bad. But once you start at 80 and then go a degree or two, bleaching can occur. remember if you are not using an adequate filteration system that helps oxygenate the water, the warmer the water, the less oxygen there is in it.
patandlace
Active Member
I keep mine at 80
jonthefishguy
Active Member
Zooxanthellae (microscopic algae) live in the tissue of many corals in a symbiotic relationship. Up to 90 per cent of the coral’s energy requirements comes from the zooxanthellae so corals are highly dependant on this symbiotic relationship.Coral bleaching occurs when the coral host expels its zooxanthellae. Photosynthetic pigments of the zooxanthellae give corals much of their colour. Therefore without the zooxanthellae, the tissue of the coral animal appears transparent and the coral’s bright white skeleton is revealed.Corals begin to starve once they bleach. While some corals are able to feed themselves, most corals struggle to survive without their zooxanthellae. If conditions return to normal, corals can regain their zooxanthellae, return to normal colour and survive. This stress, however, is likely to cause decreased coral growth and reproduction, and increased susceptibility to disease.
jonthefishguy
Active Member
there are living algae in coral, if the water gets too warm, they loose their color and starve, then die.....sometimes they come back, but most times they just die.
jonthefishguy
Active Member
no, I am not. I am a business owner in this field. I own an Aquarium Maintenance Sales and Service company. There are too many variables on why something may have died, but if you had constant fluctuations of temperatures reaching and/or exceeding 84 degrees, that can play a part
perfectdark
Active Member
Im curious where your facts come from that anything above 80 will cause bleaching? I know reefers that keep their tanks at a constant 84 degress and have no issues. I keep mine at 80 and flucuations occur between 79 and 82. Zooxanthellea is a product of photosynthesis and PAR in light. Temperature may play a part in weather or not your corals like to open at a higher temp. But as far as producing Zoox I would think that a temp in the upper 80's would start to show issues, then I could understand stress and bleaching. Im not sure but interested, thats my only reason for questioning this.
fishieness
Active Member
temp could defiantly cause bleaching. However, i would say that any temp above 80 degrees would. I know a lot of sps reefers that keep their temp at 82 an still have great color. I think the worst part is the fluctuations that occure at night when the lights are off and the room gets cold. You are goign to have a much higher fluctuation than if you kept the tank cooler.
txstudent
New Member
i just would like to add that the reason natural coral reefs are in danger of coral bleaching is because of global warming. If the waters raise another 5 degrees, the symbiotic algae will not be able to photosynthesize nutrients for the coral... temp is very important to the safety of all living organisms.....us included.
p.s. if you want me to send u a link on a research study done on this i can.
- john
p.s. if you want me to send u a link on a research study done on this i can.
- john
