You have to many fish for that tank. I know keeping a lot of guppies in a 10 gallon is tempting, but the same bio load rules apply. The "old-school" way of thinking about bio load was 1 inch of fish to 1 gallon of water, but now many aquarists believe that that is to much for a tank. The fancy guppies can be temperamental about water parameters as well.
What temperature is the tank at and what are the nitrates and other readings at? Also how many males and females are in the tank?
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55gal,260 watt PC(2x65 actinic,2x65 10k daylight,8 lunar LED) 45#LR, 45#LS, 3 maxi-jet 900's on a natural wavemaker timer,phosban reactor, 5 gal fuge (built out of standard 10 gallon tank) with chaeto, grape, and feather caulerpa, sealife systems protein skimmer, wet/dry, 4 blue/green chromi, 1 skunk cleaner shrimp, 1 coral beauty,1 true perc, 5 mexican turbo snails, assorted dwarf blue leg hermits, astrea snails, and nerite snails |