Bryopsis

[jeasko]

Having a real battle on my hands with bryopsis currently having to resort to removing it regularly even though im using rowaphos and purigen with activated carbon, the only thing I can think of doing is reducing my lighting times, the only concern with this is how far I reduce it by as I have a derasa clam, my asumption is that it has suddenly taken off due to changing over to a 250W Mh pendant a few months back, with a 10000k lamp and 2x39w t5 actinic tubes (which I run in addition to the 250w through the day).

I am keen to completely leave the lights off for a few days but again due to the clam (all the others should be ok) not sure its practicle anyone wish to give me advice on firstly reducing lighting times (min amount of time I can get away with lighting the tank for) and secondly blacking out for a few days I would be very greatful!

 

[SkiFletch]

48 hours is usually OK for a blackout. You could also try running actinics only for 3-4 days and see if that impedes it's growth without the red specra from the halides...

 

[jeasko]

will try the complete black out for 48 hours then see what sort of a state the bryopsis is in as an immediate kick start to reducing this stuff, what sort of time can I get away with for minmum lighting after the blackout?

Oh and thanks for answering both my questions ski nice to know someone that can confirm my thoughts

 

[SkiFletch]

With the halide? Prolly 4 or 5 hours minimum. TBH though, it won't matter. Decreasing lighting period rarely (if ever) affects byropsis.

 

[jeasko]

was just going to make any little adjustments so that hopefully all the little changes will make for a big change overal thus hopefully making a difference. I'm not overly hopeful that the blackout will make that much difference but im willing to try it!

 

[superman]

It can be a very daunting task to take on bryposis. What worked for me was to get a sea hare and a Siganus Doliatus rabbitfish. After the sea hare ate the bryopsis the rabbitfish kept it at bay. I then gave the sea hare to someone else that had bryopsis issues (sea hares can starve without bryopsis to eat) that is what worked out for me!

 

[jeasko]

the only prob with the rabit fish is it will nibble at coral as well and as I am running a reef setup im not overkeen on having that problem as had to dismantle the tank before to remove an angel fish!

 

[jeasko]

I take that back I must have been thinking about something else! however i dont have anough space to now house a rabbitfish so not really an option still