Pokeshrimp Posted December 1, 2015 Report Share Posted December 1, 2015 The jetlifter is made from an old sponge filter and siphon. And the foam was $6 off ebay and its 30ppi. I'll be testing it tomorrow. Is 30ppi safe for shrimplets? And can i start cycling with a bare bottom and just add the substrate later? The internet has brightwell on backorder and i won't be getting it for another two weeks or so. Quote Link to comment Share on other sites More sharing options...
Vpier Posted December 1, 2015 Report Share Posted December 1, 2015 The jetlifter is made from an old sponge filter and siphon. And the foam was $6 off ebay and its 30ppi. I'll be testing it tomorrow. Is 30ppi safe for shrimplets? And can i start cycling with a bare bottom and just add the substrate later? The internet has brightwell on backorder and i won't be getting it for another two weeks or so. 30 is safe Quote Link to comment Share on other sites More sharing options...
Duff0712 Posted December 1, 2015 Report Share Posted December 1, 2015 I don't see why you can't start your cycle. Your DIY HMF will help establish bacteria for when you get your brightwell. Which will help establish more bacteria for your substrate. In my experiences I haven't noticed brightwell clouding a new tank either so dumping it in with water already in the tank shouldn't make your tank a mess. Which is a plus. This is an opinion, but I don't see why not! Also dang (for me) about the 30ppi. If I had known 30 was safe for shrimplets I wouldn't have gotten 45 ppi. Has been great so far, but I'm not sure if flow is equal throughout the sponge. Quote Link to comment Share on other sites More sharing options...
Vpier Posted December 1, 2015 Report Share Posted December 1, 2015 I don't see why you can't start your cycle. Your DIY HMF will help establish bacteria for when you get your brightwell. Which will help establish more bacteria for your substrate. In my experiences I haven't noticed brightwell clouding a new tank either so dumping it in with water already in the tank shouldn't make your tank a mess. Which is a plus. This is an opinion, but I don't see why not! Also dang (for me) about the 30ppi. If I had known 30 was safe for shrimplets I wouldn't have gotten 45 ppi. Has been great so far, but I'm not sure if flow is equal throughout the sponge. 45ppi is the primary choice but 30ppi works. 45ppi has more pores resulting in more surface area for bacteria. I have also heard with 45ppi and higher with a sponge 2 inches or thicker you will have an area inside the sponge that is anaerobic. The anaerobic bacteria will remove some nitrates. mayphly and Duff0712 2 Quote Link to comment Share on other sites More sharing options...
Pokeshrimp Posted December 1, 2015 Author Report Share Posted December 1, 2015 I decided on the 30ppi because i wasn't sure how effective the diy jetlifter would do. But even with a cheap air pump i had lying around it work great. I'll try the 45ppi for my next tank. Duff0712 1 Quote Link to comment Share on other sites More sharing options...
Vpier Posted December 2, 2015 Report Share Posted December 2, 2015 I decided on the 30ppi because i wasn't sure how effective the diy jetlifter would do. But even with a cheap air pump i had lying around it work great. I'll try the 45ppi for my next tank. Not bad for $6 Pokeshrimp 1 Quote Link to comment Share on other sites More sharing options...
MinusInfinity Posted October 11, 2016 Report Share Posted October 11, 2016 From my experience with using 30ppi sponge walls, a few babies will go into the sponges. Some will go to the other side. But the more ppi the more resistance for the water to flow into the jet lifter side Quote Link to comment Share on other sites More sharing options...
seaj Posted October 11, 2016 Report Share Posted October 11, 2016 I've seen babies crawling through sponges before, and I'm always scared that they will get stuck inside. There must be a lot of goodies in there though. I use 50 ppi sponges, because that's what was reccomended on the Swiss Tropicals site. Quote Link to comment Share on other sites More sharing options...
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