Bleaching

[alexingalls09]

Hello everyone. So I took the plunge and bought a piece of acropora finally. BUT........ it is bleaching a little bit on the bottom. I have had it about 4 months now. My water parameters are perfect meaning undetectable phosphate levels no ammonia, nitrites, or nitrates. My tank has been running for about a year. The piece of coral is sitting on a piece of live rock that is 9 inches away from the lighting, which is about 5 and a half inches below the water level. I am running a t5ho light fixture that has 4 bulbs at 54 watts each. i run 2 actinic bulbs at 420/460nm, 1 10k white bulb and a purple bulb. the bulbs can be seen here AquaticLife 48 Inch 54W T5HO Bulb and the fixture is AquaticLife T5 HO 4-Lamp Light Fixtures w/ Lunar LEDs
the timer is set to the default times that they had set.
When i got the piece of acropora i had no clue what i was doing other then what i seen online as far as putting it in place so i did get a little glue on the side about where it is bleached out but that piece of glue fell off about a month ago....I am thinking this is maybe why that spot is bleached. Will this spot ever recover from that, or maybe its not that at all. I really do not know. well i guess throw out your input and I will make adjustments as necessary

 

[revsgirl]

Bump


Chasing the Dream Giver, not the dream! Tonya

 

[Reefer1225]

Looks more like necrosis in the very bottom. When I had a frag bleach, it happened relatively quickly and affected the whole frag (ie - the whole frag turning white). When getting a new frag, you should light acclimate, especially if it comes from a tank that has weaker lightening that yours. Start it at bottom and move it up every week to see it reacts until its in its final location. If it is bleaching, I would put in it bottom and let it recover until it gets color back. Bleaching is definitely recoverable, just takes a while. Good luck!


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[Reefer1225]

Oh, and if it is RTN/STN and you see more tissue loss, frag the base off up to the healthy part, dip, re-mount, and hope for the best.


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[shred5]

Well that’s not bleaching that is recession. You can see a clear line where the tissue ends. Bleaching is when the zooxanthellae evacuate the coral leaving a white spot. The super glue if was in that spot I am sure is what caused it there. But see the line of tissue just above the algae. That algae is forcing the tissue back. Algae use chemicals to fight the coral for space. Remove as much algae as you can and put super glue over it or break the frag off and re glue it to something else.


Also I would use kz, ati or giesemann bulbs for better par.

 

[alexingalls09]

Well i just got a new fully stocked cleanup crew last week and they have been going to town so my tank is clearing up nicely from the algae. I just bought a Tunze ATO so im over budget this month on my tank. Can i frag this piece using something other then bone cutters like a hack saw?