Filters..oxygen??

[amanda37]

Hello all again i have a freshwater tank with 4 small danios in it and i can't work out the filter whether i have done it properly.It is an elite underwater filter i have put it on the glass just under the water.And i have put plastic plants in front of the filter to try to hide it.Would it be able to filter properly if plastic plants are in the way???And when my danios are near the top of the water they swim towards the filter but the filter is pulling them away is thiis normal???There is a few airbubbles on the top of the water at the side of the tank are they getting enough oxygen??One last question i bought some aquarium ornamnets from an aquaiurm and added them been there for a week now but i have noticed on two of them they are like bubbly and i am sure when i bought them they were smooth.Anyone help me please.

[Lady Hobbs]

Your filter is pulling water in and pushing water out. The fish getting pushed back is normal and it's due to them getting in the outflow. Some fish really like that and learn to play in it.

I keep my filters free from any obstruction so they can filter properly.
A small airstone may help with oxygen but with the small amount of fish you have right now, you probably have enough. Overstocked tanks do need more oxygen added.

If you purchased your ornaments from a fish store and they are intended for fish tanks, I wouldn't worry about those bubbles yet. New tanks and ornaments do get those bubbles on them for a while.

[amanda37]

Thanks for answering all my questions lady hobbs you have put my mind at ease :19: