Supercoley I'm a little confused by your statement. The big tank your linking to in the Barr report looks like it's running in the range of 3 to 4 wpg. The Mini S light that ADA sells is 27watts for around 4g or 6.75wpg. These are pretty much in the range of Bryce's chart.Bryce. That fitch one is one of my favourite chuckles. lol Amano doesn't use that amount of light himself anymore and I won't go into using W for it. lol That calculator suggests even more W than the WPG rule which we know is well out of date and with todays improved more efficient lights then the old low light wattage can be today's high light wattage!!! You can't supply suggestions from a 13 year old article when technology is involved!!!
As an example if I type my tank size in it comes up with 113W. You must be kidding. 60W is the max I've ever used and that was darned bright. The tank you see below in the sig is bright enough with 48W. Not the brightest by far but 113W. Thats beyond a joke. they must be calculated
ADAs own lighting units seem to be lowlight units diguised!!!
Check out the thread!!!:
are narrow-minded. The OP's problem certainly isn't obvious to those who have experience with a wide variety of setups.Your problem is quite obviously 2.6WPG with unstable CO2 and/or poor circulation.