04-04-2013, 12:08 PM
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Originally Posted by rexpepper651
im also doing this experiment. ive been lidless for about 2 weeks now. ive found that my water lettuce is growing really well and my vine looking floating plants as well. ive only noticed water level go down about 1.5 inches over a week. as for temps i havent really kept track. cool experiment tho!
I have been wanting water lettuce but, after a little more looking, found that it doesn't like to get the topside wet... close fitting dripping glass tops will probably kill it in short order. I'm going to have to stick with my duckweed and now some pennywort that is working out nicely on the surface.
I have a jug on the go, not heated plant only that is losing nothing to evaporation but there is literally a 1.5" layer of duckweed on the surface. If I went with really low light fully covered with surface plants, I think that the plant cover would mitigate evaporation and heat loss.
Originally Posted by 1077
I have noticed that without glass tops on my 80 gal and 55 gal that I lose approx two and a half gallon's of water each week,each tank, due to evaporation.(two to three fish)
With glass top's on ,,I only lose about a half gallon to a gallon of water per week.(no jumper's)
That's a lot of water... and a lot of fish
. I can't say that I lose anything with the glass lid on, nothing that I have noticed and I think I would notice.
To be honest, the only reason I had the lid off was to try to catch our "sick" betta. The water and temperature loss were sidebars. I still have not caught him... feisty bugger considering he hasn't eaten in 6 days... and the shrimp seem to all still be around.