Not really.
In the FW tanks many plants are extremely sensitive to the oxidizing affects of HP and will melt within a day of adding the solution. These are usually fine stemmed, fine leaf plants and crypts. The majority of broad leaf plants fair much better with the addition of this chemical.
However in Saltwater, our corals are much more sensitive to this chemical. They tend to react negatively to the rapid increase in O2 in their tissues as the chemical reacts with the photosynthetic zooxanthelle alage in their tissues. Many corals can not take a large dose or a prolonged concentrated dose, and many inverts like copepods and amphipods will die in a HP bath of 5ml which shows that ornamental inverts like shrimp and crabs are susceptible to gill burns from this and asphyxiating.
More is certainly not better when adding it to a SW reef tank.
This does not match with my experience. Hydrogen peroxide is commonly used as a 'spot treatment' (turn off filter(s) for a few minutes) to oxidize nuisance algae on equipment, hardscape, and slow growing plants, but in tanks with all kinds of plants including fine stemmed and leaved plants. I've used up to 1mL:g of 3% solution and nothing melted. I've done 2mL:g of 3% solution and performed a 50% water change afterwards with no negative effects. Never have I observed any melting of plants or visible stress on other livestock.
