You don't need CO2 to have a prolific floating plant display as the light isn't as critical. The right spectrum of light is needed (although it may not be as critical either as long as it has some of the right spectrum) but not the intensity as the floating leaves are so close to it. They also get CO2 directly from the air which not only has a higher concentration, much higher than you can have in water, it is also the easiest for the emmersed leaves to absorb. The only caveat is that the floating plants probably don't release as much oxygen direectly into the water.Wow, what kind of lighting do you have? Really doubt my pennywort will ever look like that with the current lighting I have. My new leaves are much much much smaller. Looks like you use Co2 system, I know nothing about Co2 systems.
Some of th e tips of my stems are melting also, what causes this?
Did some of your ends of stems melt/turn to mush Byron. I'm seeing new growth just cautious because I'm going on limited light , one T8 daylight tube , hoping its not light deficientIt took my Brazilian Pennywort a few weeks to develop, and after a few months it was thick like Rip's and I was tossing out handfuls every week. Periodically it takes a downturn, probably a rest.
If this is a 48-inch T8 tube with around 6500K, then Pennywort should be fine floating. Once that occurs (give it time, as I said), planting a few stems in the substrate should allow it to adjust, if you want it (or some of it) planted. It is fine left floating, but thin it out once it starts massing up, keeping the stems separate on the surface.Did some of your ends of stems melt/turn to mush Byron. I'm seeing new growth just cautious because I'm going on limited light , one T8 daylight tube , hoping its not light deficient
I wouldn't be quick to double dose the ferts yet. I have a heavily planted tank and only dose once a week. If you are going to up it don't just double, increase the amount (1.25 dose weekly) and split that total per week instead, or just shorten time between dosings to 6 or 5 days.I've been use flourish comp. once a week but have been thinking of using twice because I also have 3 swords in there, yes the tube that you mentioned is what I'm using. One more question ,I have a HOB filter that is baffled but still gives some surface disturbance , does disturbance affect floating pennywort like it would a true floating plant. I currently have all of the pennywort over to one side but would like to shift a few stems over.