Re: Boiling algae to determine type: red

>From: ac554 at freenet_carleton.ca (David Whittaker)
>Date: Mon, 7 Aug 1995 07:57:32 -0400
>Subject: Boiling algae to determine type: red
>I believe that it was Paul Kombholtz who recently said.....
>>I have noticed that red algae (which normally looks dark green) turns
>>bright red when exposed to hot water. Take a sample and boil it if you
>>want to be sure of what you're dealing with. You can also use tap water
>>as long as it gets reasonably hot.
>Well, I boiled an anubias blade with a bit of red algae attached to
>it for a couple of minutes. The algae was dark green both before and
>after the treatment. It was about 4 mm in length and appeared similar
>to what The Optimum Aquarium labels red algae on page 123, item #2.
>What gives? Any comments?

I believe the Optimum Aquarium states that exposing red algae to alcohol makes
it turn red.  It certainly has that effect on me<G>.
Mark A. Thompson - rrs0062 at ibm_net