I recently moved house and went from an 8x2x2 glass to a 6x3x2 acrylic tank. Ignoring weight and clarity advantages, my heaters turn on half as much due to the superior 'thermal insulation' properties of acrylic (I keep in cold rooms ~ 10 Celsius when I'm away). BUT I struggle to clean the algae off the front. My Flipper Max with acrylic blade is practically useless, I have to go up/down/side to side, round and round just to get the brown algae from each spot. It generally leaves 'tyre tracks' between clean and brown based on the teeth design of the blades - it's a bl**dy good workout, 30 minutes easy to wipe 1 week old brown algae off 6ft. Some spots are more than 2 weeks old and I have to write them off - they simply can't be cleaned. I just got in some Magic Eraser which I hope makes it easy. Back in the Glass Tank days the algae had no chance against the steel blades and an 8ft panel took less than 1 minute.