Maroonish/Red Bags.......growing...!

[cwrenge]

Does anyone have these Maroonish/Red Bags growing in their tank...? my friend has a 30 gal reeftank.... and we are trying to figureout why these Bags are growing in the tank, 20% water change every week... 2 55what vho's with the 10,000 k on for 6hrs. n the actinic on for 9 hrs.......... everything seems normal.....ph is 8.2 .......... let alone that the Bags ( which look like purses ) seem hard to get rid of, even after scraping the rock often , what are they n how can we eliminate this unsightly annoyance.......... any help/ideas are most welcomed....... cw

 

[steve-s]

Look similar to <<these>>

Cheers
Steve

 

[cwrenge]

Look similar to <<these>>

Cheers
Steve

It sure does Steve.....! going from top down its in the 2nd. row far right..... how can i elimate them ? and why do they appear...? thanks for the great refrence pics.... n reply Steve , cw

 

[steve-s]

Botryocladia skotsbergii, they will wax and wane based on available nutrient level. They where most likely always there, just never grew noticabley until something started to change in their favor. Unless something was recently added? Best means of elimination is manual removal but you must be careful that they are still in the >0.25" range. The larger they get the more sexually mature and likelihood to spore. I use a 0.5" syphon hose (long gone Valonia issue) and scrape them off while sucking them out. It removes them and greatly reduces the potential to spread any available spores. You can tediously pluck them off one by one but it gets very annoying.

As I said though, available nutrient is the main key. Up the water changes/frequecy, check the effectiveness/amount of water flow, monitor the chemistry for good pH/alk levels and mabye alter the skimmer to a wetter output to remove additional DOC. They usually abate fairly quickly if you get on top of it right away.

Cheers
Steve

 

[cwrenge]

Botryocladia skotsbergii, they will wax and wane based on available nutrient level. They where most likely always there, just never grew noticabley until something started to change in their favor. Unless something was recently added? Best means of elimination is manual removal but you must be careful that they are still in the >0.25" range. The larger they get the more sexually mature and likelihood to spore. I use a 0.5" syphon hose (long gone Valonia issue) and scrape them off while sucking them out. It removes them and greatly reduces the potential to spread any available spores. You can tediously pluck them off one by one but it gets very annoying.

As I said though, available nutrient is the main key. Up the water changes/frequecy, check the effectiveness/amount of water flow, monitor the chemistry for good pH/alk levels and mabye alter the skimmer to a wetter output to remove additional DOC. They usually abate fairly quickly if you get on top of it right away.

Cheers
Steve

again Thanks Steve..... cw