Hydro-Sponge V

  • We are currently upgrading MFK. thanks! -neo
1000gph is a lot for a wet/dry on 90g. Get some more input from the experts but I would say a 500gph wet/dry and one sponge/powerhead would enough for a 90g. A Rio 1400 doesn't use a ton of electricity and it's cheap to buy, what kind of pumps are you using? I might be wrong but if you do switch from a 1000gph w/d to a couple of sponges, you'll be decreasing the surface area for beneficial bacteria significantly and decreasing the water turnover ratio significantly. It might be harder to keep the water parameters stable. Just means more water changes I guess. To get anything near the filtration you currently have with sponges you will have to attach them to powerheads and then you will be cleaning the sponges every other day just to keep them from clogging. I say downgrade the pumps in the w/d and add an air driven sponge.
 
If you can stack the tanks, one over the other, you can use the waterfall method, pump water from the sump up to the top tank, have the overflow from that tank go into the tank below it and then from the lower level tank into the wet/dry. You can run twice as many tanks on half the pumps as long as the wet/dry is large enough for the tanks it is set up to support. Sponges are great, but my fish (the larger ones) have a habit of eating them. In a breeder tank or a fry grow out tank they cant be beat, for a housing tank / display tank, I stay off the sponges.
Sponge Seed tip…………….To seed sponges, throw a few in the sump to your wet/dry and leave them there for a few weeks. I keep a few in my sumps at all times as back up, on hand ready Bio Filters in case I need to separate a fish or get some new fish I need to set a tank up for.
 
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