Ive had the pellets going in 2 of my tanks for 1 week now. Both are using a TLF reactor with a mesh mod and a maxijet 1200. Each has a little less than 500ml of pellets. Both tumble nicely... but one tank is making tons of mulm.. enough that its coating the intake and exhault tubes, which then reduces flow and the pellets stop tumbling. I clean the hoses and its fine again for a day. The only difference I see in the setups is the one that is making so much white gunk gets alot of light from the refuge... any ideas??
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