fishman9168
New member
Here is a pic of my tank and the red algae I have. Can anyone identify this red algae? It is the patch between the two toadstools.
Cliff
Cliff

Last edited:
Just a correction... "orthophosphate" is the common inorganic form of phosphorus, basically just another name for "phosphate". So the Hach test kit is not effective at measuring organic phosphorus. Sorry if that caused any confusion.SAT said:I have a Hach model PO-19 kit which can detect that low and reads both phosphate and ortho-phosphate. That means it picks up at least some of the organic forms.
The Hach model PO-24 kit uses ascorbic acid digestion to read "total phosphate" (ortho-, meta- and organic). I got a quote for $125 on their web site. I've never used it, but I believe it employs the same color wheel mechanism as the PO-19, which works pretty well.yardboy said:Further clarification, as far as I know, any posphate test that doesn't have some sort of acid digestion is not going to measure organic posphates either, so that eliminates any "dip-stick" method. I guess(?) organic posphates would be removed by a skimmer?
If you search for Valonia you'll find a bunch of threads. Emerald crabs (Mithrax) are commonly recommended and many people have reported success. Note, however, that at least some flavors of Mithrax grow quite large and are not purely herbivorous.Bluecheese said:Since we have so many experts on the algae issue on this thread I was wondering what was the take on bubble algae. What works best to control it?--Tangs? Crabs?...?