I doubt flow is a big issue especially with the add'l powerhead in 20g. Is the pinnatifida under direct light? I have some and once I cut away the bolbitis and it got direct light it took off?
What has been and is your current light cycle. How much PAR do you think you have?
Yeah, but the powerhead was only in for about a week but I took it out and sent it back today because I couldnt take how much of an eyesore it was. I replaced it today with a smaller internal pump/filter that finally seems to be about the right fit for that corner of the tank, pictures will explain it better now, flow seems pretty good, gonna see if that direction helps circulate that kind of dead part of the tank flow wise under the inflow.
The pinnatifida was under direct light and was growing quite well for a while but after algae panic and so on I think the lighting changes didn't make it happy and it started doing worse however it always seemed a bit of a magnet for the staghorn so I decided to finally get rid of the bulk of it except for a small stalk that didnt seem melted or infested... see what happens with that now that I have slowly been increasing light period again and have been dosing more ferts.. plus thinking the internal filter might help in that part of the tank now.
PAR... no idea, might be worth taking a look into that. Light cycle is still modest, only about 5 hours at 25-33% with fairly slow ramp up and down cycles, can upload a few comparisons screenshots of my lighting period over the months!
Here are some new photos from tonight after the additional pump swap and so on, anyway interested to see how it turns out; gotta get the water test in this weekend too.
BTW I decided to grab a Twinstar off someone local that had it in a nice tank with RO so it should be nice and clean after a few months in use, curious if it might help me beat my algae... but if it is too ugly or doesnt seem to do anything after a few weeks I will try to sell it again but anyway at least getting it used at half price feels better than investing in it new considering it is a bit controversial as to its affect.
*** I added a small piece of plexiglas to shroud light from reflecting from the weird corner in my wall there which was causing an annoying visible line from the side... trying it out to see if it annoys me or if I might make a larger shroud or hood