What’s an HOB? And I do have a sponge filter! How did you know???Plants, which goldfish will most likely eat. Airstones, better yet a bubble screen across the entire back wall will help with surface agitation. It sounds like you have a sponge filter, but if you also have an HOB ,lowering the water level will help to increase surface agitation as well.
If you google 'hob filter' or 'sponge filter' you will clearly see the difference. There are also canister filters as well
HOB stands for hang on back. Walmart sells bubble screens. You can cut them to fit the whole length of your tank. I made 1, 4 foot long to fit my old 75 gallon.
Awesome, that looks sooooo nice!HOB stands for hang on back. Walmart sells bubble screens. You can cut them to fit the whole length of your tank. I made 1, 4 foot long to fit my old 75 gallon.
Your original post stated the bubbles coming out of the filter, that can really only be a sponge filter.View attachment 408154 Here's a picture of what the bubble screen I got at Walmart looks like.
180 litres. 2 goldfish. I have no idea what the parameters are. I have these strips but I don’t even know what the colours mean. I just don’t understand it all