pico custom nano question

[prfishgirl]

anyone have any good ideas on how to take stubborn coralline algae off the back of the tank? i've had it sitting in citric acid and everything else came off except for what's left of the coralline algae

 

[bonjorno2]

Vinegar and carefully with a razor blade

 

[prfishgirl]

Vinegar and carefully with a razor blade

It’s interesting because the back of this tank isn’t a smooth acrylic... not sure of the material either... it’s so embedded

 

[bonjorno2]

That sucks... soak it the best you can!

 

[JumboShrimp]

Maybe a nice paste of Bar Keeper’s friend. You can search R2R for more info. I think even Walmart carries it.

 

[Gusto]

I've used a vinegar soaked napkin/rag and let it sit on it for an hour or so.. you might have to put the tank on its side so they stay.