Hello,
Thanks for your replies !
Here is Day +10
-One week ago I had very littles bubbles of brown algae growing between soil and HC , I don't care about it which seems to be normal at begin and not agressive growing.
-3 days ago starts hairy green algae ( I don't know if it's the correct name ) mainly on the roots and white sand, few on leaves. I don't like it, growing is fast. I made super tool to remove it, I'll post a new thread about it !!!.
As a beginner it's hard to me to find the good equilibrium of light and CO2 .
About the light I do like Viktor Lantos a short 7 hours a day, but not in a all black room outside those 7 hours ( but the tank's is not front windows, themselves north side). The light is a Generic Aquasky 36w/3600 lumens ramp led with a dimmer wich I down power one level under maximum.
- Co2 is very hard to tell because between green, green and green... for sure it's not blue and not yellow ! Indicator used is classic Co2 solution ready to use. I did a classique 1 bubble /secondes, then 2 bubble secondes maybe this help my green algae.
Water (100% RO) changes was 25 litres every 2 days for a "classique 60-P" ( 67 litres theorical, 60x31x36cm), maybe not enough for the first week.
What I 'm seeing is a nice growing of HC, and nice growing of Rotalas ( new leaves) but I was surprised about the stem growing as the plant was looking for light ... Rotala rotundifolia are more concerned than the sp green wich seems normal.
Now I need your opinions about what I want to do with my rotalas,because I guess I already should do my first triming.
I don't want a forest or a dense bunch of rotalas.
Now the "base" with old (emerged) leaves is nice rooted in soil but I thought to cut half the plant, unroot all of them and re-plant only the upper part. Also I just received my rotala colora to replace most of the rotundifolia.
What do you think about to do it in this way ? is it good ? is it safe at this young age of tank ? I just start EI fert today.
What do you think about green algae, too much power light over CO2 or the reverse ? not enough water change ?
Thank you for your advices !!