Only Naturally lit tank?

[BuffaloPolypteridae]

Neither would I X, to the guy who asked about his 29 gallon, if you can stitch 2 curtains together w/ a sheet of tinfoil in the middle of them it really really helps to reflect heat. I did white to face outside and brown on the inside. Also for winter, if you change your curtains to something thick and black then it should help to insulate the tank from drafts further.

Thanks for all the input everyone!

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[alexanian]

The hyacinths need at least a few hours of direct sunlight, I have tried them on less lit tanks and they quickly wither away. Even on tanks with great sun, by winters end they look pretty ragged, so in summer they are in the pond, in fall most end up on the compost heap they multiply so quickly outdoors.

I have window refugiums that they do very well in, getting sun from 3 sides.

Thank you for replying, I'm asking cuz I bought 2 this summer, one was on the livingroom table getting fair light and the other was near the window in direct sunlight, both in shallow waterbowls without fish and they both browned up and withered. I don't know what i'm doing wrong and would love to have them in my tanks but they didn't work. Any tips?

 

[Mr. Mom]

Neither would I X, to the guy who asked about his 29 gallon, if you can stitch 2 curtains together w/ a sheet of tinfoil in the middle of them it really really helps to reflect heat. I did white to face outside and brown on the inside. Also for winter, if you change your curtains to something thick and black then it should help to insulate the tank from drafts further.

Thanks for the input .... its not so much the temp I'm concerned about, but rather the UV rays. The windows its next too are very well sealed (as windows go) I'm more wondering if the blinds are enough for the UV rays (I understand nothings perfect). The blinds I have are "Hunter Douglas Blinds" and not the cheap ones either ... they supposed to deflect anywhere's between 75% up to 99% when used with double paned windows (according to their website). So I was hoping this would be sufficient ... but now asking if anyone has more knowledge into to this.

 

[xraycer]

I don't have any scientific proof, but I'm very confident that your tank will be fine.

 

[duanes]

Beside needing sun, hyacinths can be fairly heavy feeders.
Just sitting in an unfertilized bowl of tap water may not provide enough nutrients to fulfill their feeding requirements. Using water from your tanks water changes might be sufficient
The ones that did best over winter for me were in a window box refugium receiving effluent from from tanks stocked with fish.