I'll keep a better journal and test the water parameters.
Thank you for the advice, and YES! I "had" a very dirty substrate, "sigh"
Todays water parameters before w/c
0 Ammonia, Nitrite
todays observation: looks to have less bba
hmmmm, it is interesting that I've read articles on phosphates and they all don't seem to have the same conclusion of how much is of a good amount of it. One states the API Phosphate kit does not measure "all" the different types of phosphates in the aquarium, omg not again having to guess, lol. and with that said, a good level of phosphate is ~ .5ppm and if seeing 1ppm that amount will help algae. I've also read comments as that of yours 1ppm is desired to keep away algae and not only that but plants use phosphates. This type of conflicting sources gets one confused as it doesn't seem to be a consensus of abetting or detering algae growth for a given amount in the tank.
I dimmed my lights to 50% whites and shortened the on time to 7hours, 1.5hours ramp up/down and 4 hours of peak light time.
I stopped using Phosguard after my wc 3days ago and today the api test kit showed ~1ppm(thats what it looked liked to me). I restarted using Phosguard with my wc today before I read your suggestion of having 1ppm may have helped rid bba. Geez.
I do not use co2 nor do I have a lot of plants being this is only a 5 gallon tank and I've started to dose Nilocg Thrive ~.125ml twice a week with water changes. I guess Thrive may also provide phoshates as the flake fish food as well.
I've cleaned my gravel well the past couple of weeks(deep and disturbing) cleaned my canister and the tanks oem filter which is not much, cleaned all my intake/output hoses. I had diatoms, small time bga(used erythromycin), what seemed to be gsa(bleach dip) and am still working on this bba.
I'm learning and believe I've not done this in a scientific way as having done or added many things to rid the bba.
I'll try to take a new pic of the whole tank to post here
w/c but forgot to clean pre-filters
I wonder if the stringy white filaments on the pre-filters came from my cleaning pad or is of the dead bba