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Valve for CO2 and goldfish
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To: Aquatic-Plants at actwin_com
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Subject: Valve for CO2 and goldfish
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From: sywang at whale_st.usm.edu (Shiao Y. Wang)
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Date: Wed, 3 Jan 1996 23:23:57 -0600 (CST)
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In-Reply-To: <199601032039.PAA29363 at looney_actwin.com> from "Aquatic-Plants-Owner at actwin_com" at Jan 3, 96 03:39:02 pm
I'd like to include a solinoid valve to shut off the flow of CO2 from a 20
lb tank when the lights are not on. Questions:
1. Do you put the valve between the tank and the 2-stage regulator or do
you put it after the regulator & needle valve? If you have it after the
regulator, won't the pressure slowly build up to a point that exceeds the
threshold for the solinoid valve?
2. What is a good source for purchasing solinoid valves? I'd appreciate
specific model recommendations.
A comment about goldfish. Someone said that goldfish go dormant (won't
eat) below 55 F and are stressed above 75 F. That is not always the
case. I have goldfish outdoors in 30 gal tanks now. Had them before in
above ground plastic pools also. They are fine in freezing weather; have
to break through the ice though to feed them (pellets). They are slower
and do eat less. Main concern is ice getting thick and expanding - might
crack glass tanks. The tanks are in full sun during the summer and the
water gets above 95 F. They eat and excrete quite a bit - the water gets
to be like pea soup from the algae.
--
Shiao Y. Wang
University of Southern Mississippi
sywang at whale_st.usm.edu