![\"img_3030.jpg\"](\"https:\/\/bogott.net\/unspecified\/wp-content\/uploads\/2009\/02\/img_3030.jpg\")
<\/p>\nNow, a month later, those three tanks look like this:<\/p>\n
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So, we know I can grow algae.<\/p>\n
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By this time, I\u2019ve uncovered a few inconsistencies in my experiment. \u00a0It turns out that light is emitted from a bulb in diagonal directions as well as straight down (no big surprise there) \u00a0so the middle tank gets considerably more light than those on the ends. \u00a0This was more obvious at the beginning of May, when the middle tank was a nice dark green but the other two had barely gotten started. \u00a0I\u2019m hoping that from a zoe\u2019s point of view the food-supply is near infinite in all three tanks, but there may be differences in growth rate. \u00a0(A store that sells frozen Tetraselmis claims better growth rate with frozen algae over live algae because less energy is spent in foraging. \u00a0A difference in food density may change the growth rate for similar reasons.)<\/p>\n
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The other inconsistency is that the middle heated tank is a degree or so warmer than the rightmost. \u00a0That\u2019s due to laziness — I\u2019m tired of fussing with the thermostat and I can\u2019t get things quite right.<\/p>\n
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On account of the warm spring, the leftmost tank is warmer than I\u2019d planned, nearly 70 degrees. \u00a0I\u2019m most interested in whether or not growth is stopped altogether by winter temperatures in the 50\u2019s, but I\u2019ll have to wait until winter to learn about that.<\/p>\n
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Meanwhile, the eggs look close to hatching. \u00a0By this time nearly all of the females are carrying eggs, so it\u2019s hard to know which one had them first — this means that I won\u2019t know exactly how long egg development takes, although it seems to be following the expect 5-week course.<\/p>\n
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I\u2019ve moved a couple of especially eggy females into a bowl where I can more easily collect the larvae when they hatch.<\/p>\n
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![\"img_3026.jpg\"](\"https:\/\/bogott.net\/unspecified\/wp-content\/uploads\/2009\/02\/img_3026.jpg\")
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![\"img_2724.jpg\"](\"https:\/\/bogott.net\/unspecified\/wp-content\/uploads\/2009\/02\/img_2724.jpg\")
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Now, a month later, those three tanks look like this: So, we know I can grow algae. By this time, I\u2019ve uncovered a few inconsistencies in my experiment. \u00a0It turns out that light is emitted from a bulb in … Continue reading