How does one remedy an algae on the shell of a red eared slider?

i have 2 males and i put 10 gallons of water with a cap full of bleach in it and sometimes i get an old toothbrush to em.

I disagree with the statement above this line. You should NEVER EVER use soap or other household chemicals and soaps ESPECIALLY bleach when cleaning your tank. Soap and cleaners will make your turtle very sick, and could possibly kill them, weather you rinse it out well or not.

If the algae gets too thick in your tank, you can get an Algae Magnet that you use to clean the glass with, without having to empty the the water out. You can syphon the algae off the rand or rocks on the bottom but you don't have to, turtles may eat it. As for algae on the shell, the one who made the next paragraph knows what tey are talking about.

By: Xeous

you dont, it makes them feel more natural and in the wild which means it will not suddenly stop eating like some and it makes your turtle a happy turtle and watching a happy turtle is VERY FUN! by the way the toothbrush idea is good that is what i use to clean of occasional algae spots an the tank walls, but the bleach is a HUGE no no! it will harm your little friend when it gets in the water next the trace amounts will wash of in the water and swimming around in those chemicals will make a unhealthy, unhappy turtle and watching your friend like that is very depressing it also is horrible for the natural chemicals that help make up your turtle's shell. ugly shell, unappy turtle, and an unhealthy turtle is not very fun

I hope this helped

paragraph by: Redearedsliderman