CalebLS Posted July 24, 2016 Report Share Posted July 24, 2016 I have a Aqua One 90 Litre aquarium, I was wondering how many fish (max) could fit in it? It has a powerhead with the cartridges, and 2 18Watt each lights. It is already running and has had fish for well over 6 years. Right now I am in the process of adding plants (Anubias, Stargrass, Java moss, Java fern, Cyperus helferi, pennywort), and would like to add as many as possible to it. I currently have small fish in it, around 15 or so. What could I do to accommodate more fish, and to get healthy plants. BTW I will not add c02 to the tank. Thanks Quote Link to comment Share on other sites More sharing options...
Caryl Posted July 24, 2016 Report Share Posted July 24, 2016 Numbers of fish depends on the size and species. The smaller the fish the more you can have but you are still limited by the volume.Increased filtration would enable you to add more fish but if you have a power cut or filter failure you would run into problems very quickly. Quote Link to comment Share on other sites More sharing options...
CalebLS Posted July 24, 2016 Author Report Share Posted July 24, 2016 I would only add small tetras, such as neons, cardinals and glow lights. Nothing fancy Quote Link to comment Share on other sites More sharing options...
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