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Viewed: 225 -- Replies: 4 | ||||||||
PM | All Topics | General | Cichlids | Marine | Coldwater | Tanks/Equipment | Diseases | Members | |||||||||
| Posted | PH levels in marine |
| 19-01-2007 21:38 by Linda Chenapa |
Is it true that the PH drops in a marine tank when the lights go off? I've been told that it can drop to 7.8 |
| 20-01-2007 08:51 by trik |
yes and lower, if you have a sump with cheato in keep it reverse lit to the tank and it should keep it more stable, i keep my sump lit 24/7 and have a stable 8.3/3.33 |
| 20-01-2007 19:36 by Linda Chenapa |
cheers trik , any reason for it ?. |
| 21-01-2007 16:47 by trik |
dissolved oxygen assists in the increase of PH and as this builds up due to activity of photosynthesis by micro and macro algae , ie lights on and off, lights on higher ph and lights off lower ph |
| 22-01-2007 09:28 by Alan |
Thew algae releases CO2 at night causing the ph to drop the best way to deal with it is keep the alkalinity high 4-5 meq and/or use an algae scrubber. I use a DSB with algae scrubber on top and it is lit 24 hours a day. I have no such problems with my ph. |
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