RE: food for daphnia

["Perkins, Stanley" <Stanley.Perkins at fortbend_k12.tx.us>]

We do know that algal blooms, in nature, go through cycles. I know my
daphnia cycle. It could just be that a maximum population was reached and
the toxins released by the algae caused the down cycle. That is why I
stagger my daphnia cultures so that at least one culture is mature, one is
growing and one is being started.

Stan Perkins

-----Original Message-----
From: LeeH920226 at aol_com [mailto:LeeH920226 at aol_com]
Sent: Tuesday, April 08, 2003 7:29 AM
To: killietalk at aka_org
Subject: Re: food for daphnia



In a message dated 4/8/03 9:50:32 AM, Stanley.Perkins at fortbend_k12.tx.us 
writes:

<< Do you add fertilizer on a regular basis? Have you done a water check?

Could be a build up of some toxins? I tend to use new old aquarium water for

each set-up? (I recycle my water changes!)The color yellow could indicate

several things including chlorosis or a diatom bloom. If you can look at the

water under a microscope when this happens. >>

Answers in order. I add Miracle Gro in small amounts about every third day. 
The first time this happened, the pH was about 5.6. I added crushed coral
and 
hoped to prevent that again. The next time the pH was about 7.0 but still 
turned yellow, and then clear. I will look at the water under a microscope 
the next time it happens, if it does. Right now I have started both tubs
over 
again. Incidentally one tub is lit with a compact fluorescent bulb 24 hours 
and the other with two incandescent bulbs 16 hours/day. Both tubs cycle 
through the yellow die off at about the same time.

Lee Harper
Media, PA 
USA
---------------
See http://www.aka.org/pages/killietalk/subkillietalk.html to unsubscribe
Join the AKA at http://www.aka.org/pages/join.html


--- StripMime Report -- processed MIME parts ---
multipart/alternative
  text/html
---
---------------
See http://www.aka.org/pages/killietalk/subkillietalk.html to unsubscribe
Join the AKA at http://www.aka.org/pages/join.html