Fissiden & Riccia

**z3r0-1** · 10th Nov 2008, 13:04

Hi all bros and sis, I was just wondering, would fissiden and riccia be suitable for my 20cm cube low tech tank? My wpg is about 3.2wpg and i will dose excel either everyday or every other day. I need some advice on this and hope that someone would be able to help. thank you.

**Shadow** · 10th Nov 2008, 13:29

ok with fissiden but probably not with riccia. Excel is another issue, it may cause melting in some plants species. for small tank WPG no longer applicable

**z3r0-1** · 10th Nov 2008, 14:02

Originally Posted by Shadow

ok with fissiden but probably not with riccia. Excel is another issue, it may cause melting in some plants species. for small tank WPG no longer applicable

i see i see, thanks for the info bro. will try fissiden and drop the idea of riccia then. thanks thanks. anyways sorry to trouble you again but may i know why for small tanks WPG is not applicable?

**Shadow** · 10th Nov 2008, 15:50

good question a bit tricky. I usually just look on how the plants are growing. I'm able to grow taiwan moss with 7W before, so I gues fissiden shouldn't be much far off. Maybe you want to try 13W or 18W, give your self some allowance

My guess why it is not applicable is because each plants have their own light threshold when it start photosynthesis. Salvina (floating plants) for example, I choose floating plants because there is no water that restricts the light. In my experience, Salvina will not survive under 7W and 9W but it is start growing under 18W. So I conclude that there is certain amount of light that plants required to sustain their life.

If you really want to know, visit the web site below, scroll to the last and fill in your tank size. It will give you the amount of light, but don't be surprise if it is endup very high (30 watt or more)

http://www.fitchfamily.com/lighting.html

**z3r0-1** · 10th Nov 2008, 17:14

Originally Posted by Shadow

good question a bit tricky. I usually just look on how the plants are growing. I'm able to grow taiwan moss with 7W before, so I gues fissiden shouldn't be much far off. Maybe you want to try 13W or 18W, give your self some allowance

My guess why it is not applicable is because each plants have their own light threshold when it start photosynthesis. Salvina (floating plants) for example, I choose floating plants because there is no water that restricts the light. In my experience, Salvina will not survive under 7W and 9W but it is start growing under 18W. So I conclude that there is certain amount of light that plants required to sustain their life.

If you really want to know, visit the web site below, scroll to the last and fill in your tank size. It will give you the amount of light, but don't be surprise if it is endup very high (30 watt or more)

http://www.fitchfamily.com/lighting.html

i see i see, alright thanks a lot for the additional information shadow. thank you