hi, Im new to the forum and new to aqua-scaping altogether. After reading many articles on aqua-scaping tanks i came to the conclusion that you needed a higher light source for smaller tanks to produce the same light intensity as a larger tank. It would appear that this now may not be true ? current setup is: 45 litre Tank 2 x 24watt PL-L lamps (one sunlight, one pink) on for 8 hours (been cut back today to 6 hours) pressurised CO2 using atomizer (not currently working, awaiting decent non-return valve) so im using an Co2 bubble ladder instead with a drop checker. Running same time as lights. substrate: JBL Manado on top of JBL Aquabasis plus Filter: 200 L/H canister Filter on a spray bar Dosing EI ferts 3x week Micro and 3x week Macro 15 fish in total: 10 neon tetra 1x female guppy, 3 flying fox, 1 ram. Ammonia: 0 ppm Nitrite: 0ppm Nitrate: 5ppm (currently dosing Nitrate other wise it ends up as 0 ppm) KH: 14 GH 21 PH 7.0 Problem iv got is green water which iv now had for couple of months and also a hair type algae that looks like staghorn but im unsure if it is or not. It pulls off the plants really easily but isnt slimy and more like a string but it grows very fast and can cover the entire tank in a week. i need serious help with this its just running out of control and ruining the hobby. Is my light too powerful which is what is causing the problem or is my filtration not adequate? thanks in advanced! Hope someone can help!