No. What happens in a fish tank is that ammonia is produced from the fish's waste (it is excreted through the gills, and their poo and uneaten food rapidly breaks down into ammonia). Plecos, by the way, are very messy fish. There is no way to prevent this from happening, and ammonia is extremely toxic to fish, even in tiny amounts. So the ammonia needs to be removed. The bacteria that change the ammonia into non toxic substances live in the filter, so without a filtration system the ammonia in the tank will build up and build up, killing the fish very fast. In order to sufficiently dilute the ammonia without a filter, you would have to do huge water changes several times a day, and in the sort of tank (100 gallons) required to support a fish as big as a Plecostomus, this would be logistically impossible.
Yes but you will need to feed it algae wafers.
almost any other type of fish just make sure their bigger than the gold fishes mouth or the goldfish will eat it
I don't know ALL the fish that eat algae, but the number one fish is probably the plecosthamus, or pleco. (I'm not sure if I spelled "plecosthamus right or not.) Plecos range from about 1" to 14". I had a pleco once...
Snails live on a tank and no you don't have to feed it.it eats of algae
nothing
There are many different aquarium animals that will clean algae off the walls of your aquarium. I will name a few: Cories, Plecostomus (AKA, Pleco) and more. There are some algae eaters that are not fish. Mystery snails, freshwater snails, and other water snails eat algae. Ghost shrimp are small and are very easy to take care of. They clean the decorations in your fish tank and eat any uneaten, leftover food.
It depends on what fish you have in the tank!
No They are really a helpful fish in you tank most of the time they eat any grow algae growing your fish tank they add wonderful color into your tank and they are very active and have hundreds of live babies
It is called coraline algae.
Algae
you buy an algae fish at a pet store to eat the algae.
You simply do regular weekly water changes of at least 50%, use an algae scrubber to clean some of the algae, and ensure that you clean out any waste. Plecos cannot survive on nothing but algae though and you should provide them with algae wafers as well as zucchini on a regular basis
algae creates oxygen in the water ,tank. i found a 35 gal. tank you could not see into because the algae was so thick. the tank had not been touched for almost 6 months, yet there was a fish alive in the tank , not only did the algae create oxygen in the tank, but also created a food source for the fish to survive