I have a suckerfish and 2 goldfish do need to feed the or will it just eat bacteria inside tank?

While suckerfish (plecostomus) can and will consume algae and detritus in the tank, they also require a varied diet. It's not healthy to rely solely on what they find in the tank.

Here's why you need to feed your suckerfish:

* Nutrient Needs: They need specific nutrients for growth and health that might be lacking in the tank's natural food sources.

* Algae Consumption Limitations: While they eat algae, the amount available in a tank might not be enough for their needs.

* Detritus is Not Enough: While they eat detritus, it's not a complete diet.

* Possible Tank Damage: If they don't get enough food, they might start scraping on your tank decor, potentially damaging it.

Feeding Recommendations:

* Algae wafers: These are specifically formulated for suckerfish and provide essential nutrients.

* Sinking pellets: These will help your suckerfish find their food at the bottom of the tank.

* Blanched vegetables: Offer blanched zucchini, spinach, or cucumber.

* Fresh fruits: Small pieces of banana or melon can be a treat.

Goldfish Needs:

* Goldfish also require a varied diet: They benefit from a combination of flakes, pellets, and occasional treats like bloodworms or brine shrimp.

Important Considerations:

* Overfeeding: Be careful not to overfeed your fish, as this can lead to water quality issues.

* Observation: Pay attention to your fish's behavior. If they seem hungry or are scraping on the tank, it's a sign they need more food.

By feeding your suckerfish and goldfish a healthy diet, you'll ensure they thrive in your tank.