diatom, detrius or ?

[geee]

Hello,

Not sure which one it is:

brownish, slightly green
more like dirt.

Thanks,

Geee

 

[Shagsbeard]

Increased flow wouldn't hurt what ever it is.

 

[geee]

just switched out two ac 70(400gph) for two Koralia #4
(1200gph).

would like to know what they are so i can
learn how to battle it

 

[geee]

Any ideas?

 

[marduc]

hard to tell which it is from the pic.

Better flow, nutrient control, and a turkey baster to the sand prior to water changes will all help, regardless of which it is.

 

[jdieck]

By the location and the apearance that might typically be a kind of Cyano or possibly dinoflagelates although I lean toward Cyanobacteria..
Does it has bubbles?
Does it forms a film?
When syphoning does it comes out easy?

 

[geee]

no not any bubbles it reminds me of tumbleweeds though.
it covered all the sand so i changed powerheads yesterday to increase
flow. i now have 3240gph of flow as opposed to 1850gph.

I manually removed it from the sand but didnt get it all
and now it seems to have been blown on the lr.
i also noticed after testing my tank that my ph level has
dropped to 7.8 from 8.2 yesterday.

 

[jdieck]

The PH drop might have been related to disturbing the sand

 

[geee]

Will the ph eventually rise again on its own?

anybody familiar with tumble weed type algae or ? ?

 

[jdieck]

<a href=showthread.php?s=&postid=10159540#post10159540 target=_blank>Originally posted</a> by geee
Will the ph eventually rise again on its own?

anybody familiar with tumble weed type algae or ? ?

Yes, insure your skimmer is operating properly and that your alkalinity is at the proper level