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10/06/2007, 09:38 AM
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#1 |
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Registered Member
Join Date: Jun 2000
Location: earth
Posts: 3,218
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water change and stirring gravel cause bleaching of sps.
years ago i posted a thread about doing water changes with gravel cleaning tubs like phython. i had noticed that when did a water change and the gravel got stirred up the next day i had some corals bleach.
that was years ago.. my new system has a large phlenum outside of the main tank so no gravel issues. however last week i did siphon the gravel in the tank that is merely to cover up the bottom.. now the bleaching started again in some corals... some of the stags went to a tan color and then next day bleached out .... didnt lose the whole had just some branches.. so i am again wondering if anyone has seen this happen to their sps have had issues after water changes and if so.. was the gravel cleaned hard.
__________________
"If the thunder don't get you then the lightning will" ..famous poet.. Current Tank Info: 500 gal starphire, reef sps dominated, 40 plus fish, 300 gallon sump in basement below, reeftek calcium reactor, reeftek kalkwasser reactor, lifeguard fluidized filter for rowaphose, 4 400MH 10k xm, 2 160 vho super attinic, DYI 50 gallon denitrator |
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10/06/2007, 12:21 PM
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#2 |
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Moved On
Join Date: Jun 2004
Posts: 2,847
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it disturbs allot of bacteria and you get a mini cycle and could be a large cycle depending on how much disturbance there is. back in my earlier yrs when i was breeding FW angels my dad came over one day and was gonna be helpful and 'clean' all my tanks, i came home to dead fish
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10/06/2007, 02:52 PM
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#3 |
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Registered Member
Join Date: Jun 2000
Location: earth
Posts: 3,218
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this was a small area.. not used for nitrification or anything.. my thought is that bacteria is released from the gravel and the sps have issues with some strains..
????
__________________
"If the thunder don't get you then the lightning will" ..famous poet.. Current Tank Info: 500 gal starphire, reef sps dominated, 40 plus fish, 300 gallon sump in basement below, reeftek calcium reactor, reeftek kalkwasser reactor, lifeguard fluidized filter for rowaphose, 4 400MH 10k xm, 2 160 vho super attinic, DYI 50 gallon denitrator |
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10/06/2007, 04:03 PM
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#4 |
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Moved On
Join Date: Jun 2004
Posts: 2,847
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could well be, i know you can have problems dosing to much ZEObac in a ZEOvit system, it leads to browning, it seams logical other strains could cause bleaching.
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10/06/2007, 06:22 PM
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#5 |
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Registered Member
Join Date: Apr 2006
Posts: 686
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I have good new on this? I am so confused as to why people have issues with acros? I have my hands in the tank all the time, siphon the sand all the time, my clown stirs the sand, my alk is 12.5 Dkh, and I have NO issues at all. My corals are happy and growing. Perhaps it's what they get used to? I have cyano and that's why I siphon the sand a lot....nothing happens the next day, ever...for a year. Maybe it's because I have aquacultured acro's? Good luck, I really don't understand all these issues people have but perhaps my time is coming?
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10/06/2007, 08:26 PM
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#6 |
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Registered Member
Join Date: Jun 2000
Location: earth
Posts: 3,218
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knock on wood rynon... sounds like you have some good husbandry going... for years i had no problems then one day ... boom the bleaching hits..
__________________
"If the thunder don't get you then the lightning will" ..famous poet.. Current Tank Info: 500 gal starphire, reef sps dominated, 40 plus fish, 300 gallon sump in basement below, reeftek calcium reactor, reeftek kalkwasser reactor, lifeguard fluidized filter for rowaphose, 4 400MH 10k xm, 2 160 vho super attinic, DYI 50 gallon denitrator |
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10/06/2007, 09:18 PM
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#7 | |
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Registered Member
Join Date: Apr 2006
Posts: 686
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Quote:
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