Juwel 350 ltr. Has been set up several years now. Plant growth has been average at best. About two to three months ago i got a really bad algae outbreak - Dark green in colour and about an inch long and looked like dog fur. Covered everything except the glass. After several weeks i got it under control with the assistance of 'Easy Life, Algexit.' The algae has now gone and ive been doing 20 - 25 % weekly water changes since. I have to do that amount due to my 14" Plec who can leave half a can of spaghetti in one go sometimes ! The plants arent growing. They are very brittle, look wilted, weak and break easily. The Algexit has been gone at least 6 water changes now. Do you think the Algexit has somehow affected them? Should i discard and start again?