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  1. What pre-filter for Rena XP4 XL?

    Freshwater Aquarium Equipment
    Hi guys, I am in the process of setting up a new 75 gallon tank that will have some fry & shrimp in, and I am trying to figure out what pre-filter I need for my Rena XP4 XL filter to avoid losing any that way. I see there are the nice foam ones, and I see some nice looking stainless mesh ones...
  2. DIY 3D background using pond sealant foam

    DIY Aquarium
    Hi guys, has any one used spray foam/ expandable foam/ great-stuff spray foam to make any decor in freshwater aquarium? any input will be appreciated. Tetra makes pond sealing foam safe for fish, but one of the marketing person had replied that it is meant "only" for outdoor pond use.
  3. Protein Skimmer not collecting

    Saltwater Aquarium Equipment
    Hello, I just purchased a hang-on refugium with skimmer from CPR. Everything is working great, I have the collection cup lowered to the base of the collection area about an inch above the bottom of the cone, but the skimmer after 24 hours has not collected anything. I see the foam/bubbles...
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