This may seem like a silly quesiton, but I can't find an answer on the net, or in any book i have. I just put a sponge on the outflow ramp of my penguin 200 filter to cut down on the current. It worked great on the current, but now there is no splashing when the water reenters the tank. Is that going to provide enough oxygen for my fish?
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29G
Penguin 200
2 Pearl Gouramis
4 Bolivian Rams
2 Java Ferns
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29G
Penguin 200
2 Pearl Gouramis
4 Bolivian Rams
2 Java Ferns