Unknown Growth on Plant

[drekfoo]

Hi all, so our studio being deeply poisoned by the beauty of aquariums decided to get a mini one. We set up a 1.5ft tank roughly a month back. Threw in a couple of Yamatos, some tetras and a couple of Otos and two starlight plecos. Initially everyone was happy and good but the Yamatos died followed by one starlight and an Oto. It stabilized and most of the fauna inside are doing okay right now.

Our water change regime ranges from weekly to fortnightly. We are using pressurized CO2 and our ferts regime is two pumps of ADA Brighty Step 1, and the occasional supplementing of Fe and P. Lights are on roughly 6hours.

Recently we noticed unknown growth on our background plants which have not been doing very well. I have attempted to snap a few shots in hopes of identifying it, and maybe save our set-up. I can't remember which plants these are but they were relatively pricey background plants - might be Tridents of some sort from Fishy Business.

Our other plants are growing relatively well. Any help would be useful!

Semi-newly set up:
ImageUploadedByTapatalk1433849745.740455.jpg

Unknown fuzzy growth:
ImageUploadedByTapatalk1433849642.207984.jpg

Current state:
ImageUploadedByTapatalk1433849774.560918.jpg

[furyprix]

Looks like BBA (black brush algae) to me. This is one algae that many (including me) are constantly battling. Its probably caused by factors such as low CO2 levels, excess lights and nutrients.

From the positioning of your CO2 diffuser, its likely that CO2 would not be evenly distributed around the aquarium so you might want to reposition the outlet of your filter on the side with the higher slope so the water flows down and mixes the CO2 bubbles nicely around the aquarium.

Sadly BBA does not go off by its own even when the conditions of the aquarium are tweaked, have to remove it manually or dose chemicals (Excel/hydrogen peroxide/anti-algae solutions etc.).

[Urban Aquaria]

Looks like black beard algae (aka BBA)... seems there is a fair bit of excess light from the window during the day, and the tank glass needs algae cleaning too.

Yeah, ideally the Co2 diffuser though be placed opposite of the outflow, so that the circular flow pattern pushes the Co2 bubbles down and across the substrate to distribute it to all the plants.

[Dscheng]

BBA kena Liao. It is like impossible to get rid. Worst algae .

[drekfoo]

Thanks all for the response, will try to adjust things around (ie outflow versus diffuser) and limit lighting and fert regime and report back, battle will take at least 3 weeks! Will update this thread again soon!

[Clamence]

Best is cut off affected leaves and dose seachem excel or increase co2. Goodluck