Treating algae infected plants, without killing the plant

[perplex]

Use a syringe and squirt a little straight onto the algae. You may need to turn filter off if the flow is too strong otherwise it will blow it all off. I use the stuff from Coles as it's fairly diluted. Not sure how much you would use in a 100l tank but in my 350l I usually use a 5ml syringe.

hmm that wont really work, i have a foam rock wall glued to the back of the tank and its all over that, but i may try it on the plants

[NoGi]

This is my tank from a couple years back:

 

[perplex]

getting it off rocks and wood is easy, if no plants on it, i just poor boiled water over it, kills it everytime