Now, is it just a question of not feeding as much in order to force the fish to eat algae?
feed the fish once per week and if they start to look underweight then you can feed twice a week. if you add ottos then keep an eye on their bellies, if they become sunken if they are not eating enough but should be nicely rounded if they are eating plenty.The algae I'm seeing is the stuff on glass; which came about after switching from some incandescent bulb, to a growbeam. Plants have shot off, but so has the algae.
The tank houses 5 cherry shrimp, and 8 or so celestial pearl danios. It's planted heavy-ish, and growing well. Thinking I will add 4 otos? I'd like more, but tank probably isn't big enough.